User:Abyssal/List of the prehistoric life of Argentina

This list of the prehistoric life of Alabama contains the various prehistoric life-forms whose fossilized remains have been reported from within the country of Alabama.

Precambrian

The Paleobiology Database records no known occurrences of Precambrian fossils in Alabama.

Paleozoic

• †Acadagnostus
  • †Acadagnostus argentinus
• †Acanthocrinus
  • †Acanthocrinus benedettoi
• †Acanthopecten
  • †Acanthopecten jaguelensis
• †Acanthoscapha
  • †Acanthoscapha sp.
• †Acanthotoechia
  • †Acanthotoechia sp.
• †Acerocarina – tentative report
• †Acerocarina
  • †Acerocarina glaber
  • †Acerocarina sp.
• †Aclisina – tentative report
  • †Aclisina sp.
• †Acodus
  • †Acodus sp.
• †Acontiodus
  • †Acontiodus sp.
• †Acrograptus
  • †Acrograptus sp.
• †Actinopteria
  • †Actinopteria eschwegei
  • †Actinopteria modesta
• †Acuticloudina – type locality for genus
  • †Acuticloudina borreloi
• †Adelograptus
  • †Adelograptus sp.
• †Aegiromena
  • †Aegiromena glacialis
• †Agnostus
  • †Agnostus microcephalus
• †Ahtiella
  • †Ahtiella argentina
  • †Ahtiella sp.
• †Allorisma
  • †Allorisma inflectoventris – type locality for species
• †Allosaccus
  • †Allosaccus sp.
• †Allosacus
  • †Allosacus sp.
• †Amaurotoma
  • †Amaurotoma sp.
• †Amorphognathus
  • †Amorphognathus sp.
  • †Amorphognathus superbus
• †Amosina – tentative report
• †Amosina
  • †Amosina fuertensis
  • †Amosina paolae – type locality for species
  • †Amosina paolae
  • †Amosina pediculorum – type locality for species
  • †Amosina pediculorum
  • †Amosina sp.
• †Amphigraptus
  • †Amphigraptus sp.
• †Amphilichas
  • †Amphilichas sp.
• †Amplexograptus – tentative report
• †Amplexograptus
  • †Amplexograptus sp.
• †Amplexopora
  • †Amplexopora sp.
• †Ampyx – tentative report
• †Ampyx
  • †Ampyx reyesi
  • †Ampyx sp.
• †Amsassia
  • †Amsassia argentina – type locality for species
• †Anabaia – tentative report
  • †Anabaia – type locality for speciesinformal
  • †Anabaia sp.
• †Anacaenaspis
  • †Anacaenaspis sp.
• †Ananaspis
  • †Ananaspis sp.
• †Anapiculatisporites – tentative report
  • †Anapiculatisporites rallus
  • †Anapiculatisporites variornatus
• †Anaspyroceras
  • †Anaspyroceras sp.
• †Anchoramena – tentative report
• †Anchoramena
  • †Anchoramena sp.
• †Ancillotoechia
  • †Ancillotoechia cooperensis
• †Andenothyone – type locality for genus
  • †Andenothyone gondwanensis – type locality for species
• †Andinacaste
  • †Andinacaste espejensis – type locality for species
• †Anebolithus – tentative report
  • †Anebolithus sp.
• †Angelina
  • †Angelina hyeronimi – or unidentified related form
  • †Angelina hyeronimi – or unidentified comparable form
  • †Angelina hyeronimi
  • †Angelina hyeronomi
  • †Angelina kayseri
  • †Angelina punctolineata
  • †Angelina sp.
  • †Angelina sp. Ainformal
• †Angelinoceras
  • †Angelinoceras sp.
• †Anisochilina
  • †Anisochilina sp.
• †Anisograptus
  • †Anisograptus flexuosus – or unidentified comparable form
  • †Anisograptus richardsoni – or unidentified comparable form
• †Anisopleurella
  • †Anisopleurella sp.
• †Annamitella
  • †Annamitella sp.
  • †Annamitella tellecheai
• †Annularia
  • †Annularia sp. 1informal
• †Anoplia
  • †Anoplia azucenae – type locality for species
  • †Anoplia sp.
• †Ansella
  • †Ansella sp.
• †Anthaspidella
  • †Anthaspidella alveola – type locality for species
  • †Anthaspidella annulata – type locality for species
  • †Anthaspidella inornata – type locality for species
  • †Anthaspidella sp.
• †Anthracoblattina
  • †Anthracoblattina archangelskyi – type locality for species
• †Anthracoleda
  • †Anthracoleda minuta
• †Aostipora
  • †Aostipora sanjuanensis – type locality for species
• †Aparchites
  • †Aparchites sp.
• †Apatokephalus
  • †Apatokephalus exiguus
  • †Apatokephalus serratus
  • †Apatokephalus sp.
• †Aphanaia
  • †Aphanaia orbirugata – type locality for species
  • †Aphanaia orbirugata
• †Aphanomena
  • †Aphanomena chilcaensis – type locality for species
  • †Aphanomena chilcaensis
• †Aphelognathus
  • †Aphelognathus sp.
• †Apheoorthis
  • †Apheoorthis samensis – or unidentified comparable form
• †Apiculatasporites
  • †Apiculatasporites caperatus
• †Apiculiretusispora
  • †Apiculiretusispora papillata
  • †Apiculiretusispora sp.informal
  • †Apiculiretusispora sparsa
• †Apurocrinus
  • †Apurocrinus sp.
• †Aquilarella
  • †Aquilarella tapiai – type locality for species
• †Araiocaris
  • †Araiocaris sp.
• †Araiopleura
  • †Araiopleura reticulata
  • †Araiopleura sp.
• †Arancibia
  • †Arancibia sp.
• †Arberia
  • †Arberia sp. 1informal
• †Archaeorthis
  • †Archaeorthis sp.
• †Archaeoscyphia
  • †Archaeoscyphia minganensis
  • †Archaeoscyphia nana – type locality for species
  • †Archaeoscyphia nana
  • †Archaeoscyphia pulchra
  • †Archaeoscyphia sp.
  • †Archaeoscyphia tenuis – type locality for species
  • †Archaeoscyphia tenuis
• †Archaeosigillaria
  • †Archaeosigillaria conferta
• †Archangelskyblatta – type locality for genus
  • †Archangelskyblatta vishniakovae – type locality for species
• †Arenorthis
  • †Arenorthis sp.
• †Argentinala – type locality for genus
  • †Argentinala cristinae – type locality for species
• †Argentinaster
  • †Argentinaster bodenbenderi
• †Argentinodictya
  • †Argentinodictya lenticulata
• †Argentinonarkemina
  • †Argentinonarkemina amosi – type locality for species
• †Asaphellus – tentative report
• †Asaphellus
  • †Asaphellus aspinus – or unidentified comparable form
  • †Asaphellus caramarcensis
  • †Asaphellus catamarcensis
  • †Asaphellus catamarcensus
  • †Asaphellus convexus – type locality for species
  • †Asaphellus jujuanus
  • †Asaphellus riojanus
  • †Asaphellus sp.
• †Asaphopsis
  • †Asaphopsis intermedia
• †Asaphus
  • †Asaphus sp.
• †Asketochiton – type locality for genus
  • †Asketochiton chubutensis – type locality for species
• †Aspidograptus – tentative report
• †Aspidograptus
  • †Aspidograptus implicatus – or unidentified comparable form
  • †Aspidograptus minor – or unidentified comparable form
• †Astartella
  • †Astartella pusilla – type locality for species
• †Asterotheca
  • †Asterotheca feruglioi
  • †Asterotheca sp. 1informal
  • †Asterotheca sp. 2informal
  • †Asterotheca sp. 3informal
• †Astraborthis
  • †Astraborthis quebradensis
• †Aulocopium
  • †Aulocopium sanjuanensis – type locality for species
  • †Aulocopium sanjuanensis
  • †Aulocopium sp.
• †Australina
  • †Australina acutiplicata
  • †Australina jachalensis
  • †Australina sp.
• †Australoacaste
  • †Australoacaste palpalensis
• †Australobollia – type locality for genus
  • †Australobollia fuertensis – type locality for species
• †Australocoelia
  • †Australocoelia intermedia – type locality for species
• †Australoharpes
  • †Australoharpes precordilleranus
• †Australonucula
  • †Australonucula mesocarinata
• †Australopyge
  • †Australopyge acanthara
  • †Australopyge russoi
  • †Australopyge sp.
• †Australospirifer
  • †Australospirifer antarcticus
• †Australostrophia
  • †Australostrophia penoensis – type locality for species
• †Aviculopecten
  • †Aviculopecten – type locality for speciesinformal
  • †Aviculopecten sp.
• †Azurduya
  • †Azurduya chavelensis
  • †Azurduya cingolanii
• †Baldiscella
  • †Baldiscella sp.
• †Baltograptus
  • †Baltograptus deflexus
  • †Baltograptus spp.
• †Baltonoidus
  • †Baltonoidus sp.
• †Barakaria
  • †Barakaria sp. 1informal
• †Barnescoceras
  • †Barnescoceras sp.
• †Barrealispira
  • †Barrealispira tupensis – or unidentified related form
• †Basilicus
  • †Basilicus carinata
  • †Basilicus sp.
• †Batostoma
  • †Batostoma lanensis
  • †Batostoma sheldonensis
• †Bellerophon – tentative report
  • †Bellerophon sp.
• †Belloceras
  • †Belloceras sp.
• †Beltella
  • †Beltella sp.
  • †Beltella ulrichi
• †Benedettia
  • †Benedettia sp.
• †Bergstroemognathus
  • †Bergstroemognathus sp.
• †Bernardite
  • †Bernardite sp.
• †Bicuspina
  • †Bicuspina sp.
• †Bienvillia
  • †Bienvillia pirquinensis
  • †Bienvillia sp.
  • †Bienvillia tetragonalis
• †Birmanites
  • †Birmanites sp.
• †Bodenbenderia – report made of unidentified related form or using admittedly obsolete nomenclature
• †Bodenbenderia
  • †Bodenbenderia longifroms – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Bodenbenderia longifrons
• †Borestus
  • †Borestus lunatus – type locality for species
• †Botrychiopsis
  • †Botrychiopsis sp. 1informal
  • †Botrychiopsis weissiana
• †Boucotia
  • †Boucotia argentina
• †Bowerophylloides
  • †Bowerophylloides mendozaensis
• †Brackebuschia
  • †Brackebuschia acheila
• †Branisaspis
  • †Branisaspis sp.
• †Brasiliocladus
  • †Brasiliocladus sp. 1informal
• †Braulioceras – type locality for genus
  • †Braulioceras sanjuanense – type locality for species
• †Breyeria
  • †Breyeria brauckmanni – type locality for species
• †Broeggeria
  • †Broeggeria sp.
• †Brongniartella
  • †Brongniartella sp.
• †Brooksella
  • †Brooksella sp.
• †Bryograptus
  • †Bryograptus sp.
• †Bucanella
  • †Bucanella sp.
• †Bucania
  • †Bucania sp.
• †Bumastus
  • †Bumastus bellmanni
• †Buriadia
  • †Buriadia sp. 1informal
  • †Buriadia sp. 2informal
• †Buttsia
  • †Buttsia australis – type locality for species
• †Bystromena
  • †Bystromena sp.
• †Bythopora
  • †Bythopora dendrina
• †Cadomia
  • †Cadomia sp.
• †Calamospora
  • †Calamospora multiplicata
  • †Calamospora sp.informal
• †Calathium
  • †Calathium sp.
• †Callitomaria
  • †Callitomaria tepuelensis – type locality for species
  • †Callitomaria tepuelensis
• †Callograptus
  • †Callograptus salteri – or unidentified comparable form
• †Calmoniinae
  • †Calmoniinae sp.
• †Calycocoelia
  • †Calycocoelia perforata – type locality for species
  • †Calycocoelia perforata
  • †Calycocoelia sp.
• †Calymene
  • †Calymene ferrifera
  • †Calymene vallecitoensis
• †Calymenella – tentative report
• †Calymenella
  • †Calymenella sp.
  • †Calymenella zaplensis
• †Camerella
  • †Camerella sp.
• †Campylorthis
  • †Campylorthis sp.
• †Carolinites
  • †Carolinites sp.
• †Caryocaris
  • †Caryocaris sp.
• †Castellaroina
  • †Castellaroina fascifer
  • †Castellaroina sp.
• †Catamarcaia
  • †Catamarcaia chaschuilensis
  • †Catamarcaia sp.
• †Ceratocara
  • †Ceratocara argentina – type locality for species
  • †Ceratocara argentina
  • †Ceratocara sp.
• †Ceratopyge
  • †Ceratopyge forficuloides
• †Ceraurinella
  • †Ceraurinella zhoui
• †Chamishaella
  • †Chamishaella sp.
• †Chancelloria
  • †Chancelloria eros
  • †Chancelloria sp.
• †Chaniella – type locality for genus
  • †Chaniella pascuali – type locality for species
• †Chasmatopora
  • †Chasmatopora rossae
• †Cheirurus – tentative report
• †Cheirurus
  • †Cheirurus sp.
• †Chilcaia – type locality for genus
• †Chilcaia
  • †Chilcaia bimuralis – type locality for species
  • †Chilcaia sp.
• †Chionoconus
  • †Chionoconus sp.
• †Chiropteris
  • †Chiropteris sp. 1informal
• †Chomatopyge
  • †Chomatopyge canasi – type locality for species
  • †Chomatopyge canasi
• †Chonetes
  • †Chonetes sp.
• †Chonostrophiella
  • †Chonostrophiella elenae – type locality for species
• †Ciceragnostus
  • †Ciceragnostus iruyensis
  • †Ciceragnostus sp.
• †Cienagomya – type locality for genus
• †Cienagomya
  • †Cienagomya bidentata – type locality for species
  • †Cienagomya bidentata
• †Cimmeriella
  • †Cimmeriella willi – type locality for species
  • †Cimmeriella willi
• †Cinclidonema
  • †Cinclidonema sp.
• †Cladochonus – tentative report
  • †Cladochonus sp.
• †Clarkeia
  • †Clarkeia antisiensis
  • †Clarkeia ovalis
  • †Clarkeia sp. – type locality for species
  • †Clarkeia tambolarensis
• †Clarkoceras
  • †Clarkoceras sp.
• †Clavagnostus
  • †Clavagnostus calensis
  • †Clavagnostus repandus
• †Clavohamulus
  • †Clavohamulus hintzei
  • †Clavohamulus sp.
• †Cleionychia
  • †Cleionychia sp.
• †Cliftonia
  • †Cliftonia oxoplecioides
• †Climacograptus – report made of unidentified related form or using admittedly obsolete nomenclature
• †Climacograptus
  • †Climacograptus bicornis
  • †Climacograptus innotatus
  • †Climacograptus minutus – or unidentified comparable form
  • †Climacograptus rectangularis – or unidentified comparable form
  • †Climacograptus sp.
• †Clinoclimacograptus
  • †Clinoclimacograptus sp.
• †Clitambonites – tentative report
  • †Clitambonites sp.
• †Clonograptus
  • †Clonograptus sp.
  • †Clonograptus spp.
  • †Clonograptus tenellus – or unidentified comparable form
• †Cochlioceras
  • †Cochlioceras avus
  • †Cochlioceras sp.
• †Coelonella
  • †Coelonella sp.
• †Coelospira
  • †Coelospira dominans
  • †Coelospira extensa
  • †Coelospira sp.
• †Colpocoryphe
  • †Colpocoryphe sp.
• †Colpocoryphoides
  • †Colpocoryphoides trapezoidalis
• †Colpomya – tentative report
• †Colpomya
  • †Colpomya elongata – type locality for species
  • †Colpomya sp.
• †Concavodonta
  • †Concavodonta ovalis – type locality for species
• †Concavoleda – type locality for genus
  • †Concavoleda braulense – type locality for species
• †Conochitina
  • †Conochitina sp.
• †Conophrys
  • †Conophrys minutula
  • †Conophrys sp.
• †Constellaria
  • †Constellaria varia
• †Conularia
  • †Conularia sp.
• †Coolinia
  • †Coolinia sp.
• †Cordaicarpus
  • †Cordaicarpus sp. 1informal
• †Cordaites
  • †Cordaites sp. 1informal
• †Cordatomyonia
  • †Cordatomyonia umangoensis – type locality for species
  • †Cordatomyonia umangoensis
• †Cordylodus – or unidentified comparable form
• †Cordylodus
  • †Cordylodus angulatus
  • †Cordylodus intermedius
  • †Cordylodus lindstromi
  • †Cordylodus proavus
  • †Cordylodus sp.
• †Cornuodus
  • †Cornuodus sp.
• †Coronalosia
  • †Coronalosia argentinensis – type locality for species
• †Corrugatagnostus
  • †Corrugatagnostus sp.
• †Corynepteris
  • †Corynepteris sp. 1informal
• †Corynoides
  • †Corynoides sp.
• †Cosmogoniophorina
  • †Cosmogoniophorina sp.
• †Costaledopsis
  • †Costaledopsis sp.
• †Costatumulus
  • †Costatumulus amosi
  • †Costatumulus farleyensis
  • †Costatumulus sp.
  • †Costatumulus sp. Ainformal
  • †Costatumulus sp. Binformal
  • †Costatumulus sp. Cinformal
• †Coxiconchia
  • †Coxiconchia babini – type locality for species
  • †Coxiconchia sp.
• †Craniops
  • †Craniops sp.
• †Cristodus
  • †Cristodus sp. – tentative report
• †Crossiskenidium – tentative report
  • †Crossiskenidium stelzneri
• †Crurithyris – tentative report
• †Crurithyris
  • †Crurithyris roxoi
  • †Crurithyris sp.
• †Cryptograptus
  • †Cryptograptus sp.
• †Cryptonella
  • †Cryptonella baini
• †Cryptophyllus
  • †Cryptophyllus sp.
• †Ctenodonta
  • †Ctenodonta sp.
  • †Ctenodonta spp.
• †Cuneamya
  • †Cuneamya sp.
• †Curticia
  • †Curticia sp.
• †Curtoceras
  • †Curtoceras sp.
• †Cuyopsis – type locality for genus
  • †Cuyopsis symmetricus – type locality for species
• †Cyathochitina
  • †Cyathochitina sp.
• †Cyathophycus
  • †Cyathophycus extendis – type locality for species
• †Cycloconcha
  • †Cycloconcha sp.
• †Cyclogranisporites
  • †Cyclogranisporites sp.informal
• †Cyclopyge – tentative report
  • †Cyclopyge sp.
• †Cyclostomiceras
  • †Cyclostomiceras sp.
• †Cymatospira
  • †Cymatospira montfortianus – or unidentified comparable form
• †Cypricardella
  • †Cypricardella sp.
• †Cypricardinia – tentative report
  • †Cypricardinia sp. nov.informal
• †Cyptendoceras
  • †Cyptendoceras sp.
• †Cyrtodontula
  • †Cyrtodontula sp.
• †Cyrtonoidus
  • †Cyrtonoidus sp.
• †Cyrtonotella
  • †Cyrtonotella sp.
• †Cyrtospirifer
  • †Cyrtospirifer sp.
• †Dactylogonia
  • †Dactylogonia sp.
• †Dactylotreta
  • †Dactylotreta sanjuanensis – type locality for species
• †Dalmanella
  • †Dalmanella sp.
  • †Dalmanella testudinaria – or unidentified related form
  • †Dalmanella testudinaria
• †Dalmanites
  • †Dalmanites sp.
  • †Dalmanites sudamericanus – or unidentified comparable form
  • †Dalmanites sudamericanus
  • †Dalmanites transglabelaris
• †Dalmanitina
  • †Dalmanitina sp.
  • †Dalmanitina sudamericana
  • †Dalmanitina tellecheai
• †Dasometopus
  • †Dasometopus marginatus – type locality for species
• †Dawsonoceras
  • †Dawsonoceras sp.
• †Deceptrix
  • †Deceptrix elongata
  • †Deceptrix jachalensis
  • †Deceptrix subtrigonalis
• †Dedzetina – tentative report
• †Dedzetina
  • †Dedzetina silurica – type locality for species
  • †Dedzetina silurica
  • †Dedzetina sp.
  • †Dedzetina sp. nov.informal
• †Degamella
  • †Degamella famatinensis – type locality for species
• †Dekayia
  • †Dekayia sp.
• †Deltacare
  • †Deltacare prosops
• †Deltopecten
  • †Deltopecten harringtoni – type locality for species
• †Desmochitina
  • †Desmochitina sp.
• †Desmorthis – tentative report
• †Desmorthis
  • †Desmorthis bifurcata
  • †Desmorthis sp.
• †Diacalymene
  • †Diacalymene subandina
• †Diagoniella
  • †Diagoniella sp.
• †Diaphpterum – type locality for genus
  • †Diaphpterum rasnitsyni – type locality for species
• †Dicellograptus
  • †Dicellograptus sp.
• †Dichelepyge
  • †Dichelepyge pascuali
• †Dichograptus
  • †Dichograptus sp.
• †Dichotomopteris
  • †Dichotomopteris sp. 1informal
• †Dicranograptus
  • †Dicranograptus ramosus – or unidentified related form
  • †Dicranograptus sp.
• †Dictyonema
  • †Dictyonema flabelliforme
  • †Dictyonema sp.
• †Didymograptus
  • †Didymograptus bifidus
  • †Didymograptus sp.
• †Dinorthis
  • †Dinorthis sp.
• †Diplagnostus
  • †Diplagnostus indianus
  • †Diplagnostus planicauda
• †Dipleurodonta
  • †Dipleurodonta sp.
• †Diploclema
  • †Diploclema trentonense
• †Diplograptus – tentative report
• †Diplograptus
  • †Diplograptus sp.
• †Distodus
  • †Distodus sp.
• †Dizeugotheca
  • †Dizeugotheca sp. 1informal
  • †Dizeugotheca sp. 2informal
  • †Dizeugotheca sp. 3informal
• †Dolerasaphus – tentative report
• †Dolerasaphus
  • †Dolerasaphus laevis
  • †Dolerasaphus sp.
• †Dolerobasilicus – tentative report
  • †Dolerobasilicus sp.
• †Dolerorthis
  • †Dolerorthis plicata
• †Drabovia – tentative report
• †Drabovia
  • †Drabovia sp.
  • †Drabovia undulata – type locality for species
  • †Drabovia undulata
• †Drepanodus
  • †Drepanodus sp.
• †Drepanoistodus
  • †Drepanoistodus sp.
• †Dualina
  • †Dualina sp.
• †Dubhglasina
  • †Dubhglasina depressus
• †Dunbarella
  • †Dunbarella sp. – type locality for species
• †Dyschrestia – tentative report
  • †Dyschrestia sp.
• †Ectenonotus
  • †Ectenonotus sp.
• †Edmondia
  • †Edmondia sp.
• †Emiliodonta – type locality for genus
  • †Emiliodonta cuerdai – type locality for species
• †Enallopora
  • †Enallopora exigua
• †Encrinuroides
  • †Encrinuroides edseli – type locality for species
  • †Encrinuroides edseli
• †Encrinurus – tentative report
• †Encrinurus
  • †Encrinurus niquivilensis
  • †Encrinurus sp.
• †Eohomalonotus
  • †Eohomalonotus villicumensis
• †Eoleperditia
  • †Eoleperditia sp.
• †Eoorthis – tentative report
• †Eoorthis
  • †Eoorthis sp.
• †Eoplacognathus
  • †Eoplacognathus sp.
  • †Eoplacognathus suecicus
• †Eoplectodonta
  • †Eoplectodonta duplicata
• †Eopteria
  • †Eopteria agustini – type locality for species
• †Eoscheiella – type locality for genus
  • †Eoscheiella concava – type locality for species
• †Eosomichelinoceras
  • †Eosomichelinoceras baldisii – type locality for species
  • †Eosomichelinoceras baldisii
• †Eospongia
  • †Eospongia sp.
• †Eostropheodonta
  • †Eostropheodonta hirnantensis – or unidentified related form
  • †Eostropheodonta mullochensis – or unidentified related form
  • †Eostropheodonta sp.
• †Eremopteris
  • †Eremopteris sp. 1informal
• †Erismodus
  • †Erismodus sp.
• †Erraticodon
  • †Erraticodon sp.
• †Etheripecten – tentative report
• †Etheripecten
  • †Etheripecten saraviae
• †Eucerospermum
  • †Eucerospermum sp. 1informal
• †Eucharodus
  • †Eucharodus sp.
• †Euchondria
  • †Euchondria sabattini – type locality for species
  • †Euchondria sabattiniae
  • †Euchondria sabattinii
• †Eugeropteron – type locality for genus
  • †Eugeropteron lunatum – type locality for species
• †Euorthisina – tentative report
  • †Euorthisina nazarenensis – type locality for species
• †Euphemites
  • †Euphemites chubutensis
  • †Euphemites sp.
• †Eurydesma
  • †Eurydesma altum
  • †Eurydesma cordatum
  • †Eurydesma hobartense
  • †Eurydesma mytiloides
• †Euryphyllum
  • †Euryphyllum sp. 1informal
• †Fahraeosodus
  • †Fahraeosodus sp.
• †Falodus
  • †Falodus sp.
• †Famatinadonta – type locality for genus
  • †Famatinadonta gonzaloi – type locality for species
• †Famatinolithus
  • †Famatinolithus jujuyensis
  • †Famatinolithus noticus
  • †Famatinolithus sp.
• †Famatinorthis
  • †Famatinorthis sp.
  • †Famatinorthis turneri
• †Fardenia
  • †Fardenia filistriata
  • †Fardenia sp.
• †Favosites
  • †Favosites sp.
• †Fenestella
  • †Fenestella sp.
• †Ferugliocladus
  • †Ferugliocladus sp. 1informal
• †Ffynnonia
  • †Ffynnonia famatinensis
• †Finkelnburgia
  • †Finkelnburgia sp.
• †Flexicalymene – tentative report
• †Flexicalymene
  • †Flexicalymene sp.
  • †Flexicalymene vaccarii – type locality for species
• †Fremontella
  • †Fremontella inopinata
• †Furcaster
  • †Furcaster separatus – type locality for species
• †Gallagnostus
  • †Gallagnostus bolivanus
  • †Gallagnostus bolivianus
  • †Gallagnostus sp.
• †Gangamopteris
  • †Gangamopteris sp. 1informal
  • †Gangamopteris sp. 2informal
  • †Gangamopteris sp. 3informal
  • †Gangamopteris sp. 4informal
• †Gangshanoceras
  • †Gangshanoceras sp.
  • †Gangshanoceras villicumense – type locality for species
  • †Gangshanoceras villicumense
• †Gatosella – type locality for genus
• †Gatosella
  • †Gatosella muricata – type locality for species
  • †Gatosella muricata
• †Geminospora – tentative report
  • †Geminospora microglanulata
• †Geniculograptus – tentative report
  • †Geniculograptus sp.
• †Genoites
  • †Genoites sp. 1informal
• †Geragnostus
  • †Geragnostus callaveiformis
  • †Geragnostus calviformis
  • †Geragnostus hoeki
  • †Geragnostus maurii
  • †Geragnostus mesossii
  • †Geragnostus micropeltis
  • †Geragnostus nesossii
  • †Geragnostus neumanni
  • †Geragnostus sp.
  • †Geragnostus tilcuyensis
  • †Geragnostus vilonii
• †Geropteron – type locality for genus
  • †Geropteron arcuatum – type locality for species
• †Ginkgoites
  • †Ginkgoites sp. 1informal
• †Ginkgophyllum
  • †Ginkgophyllum diazii
  • †Ginkgophyllum sp. 1informal
• †Girvanella
  • †Girvanella sp.
• †Glabrocingulum
  • †Glabrocingulum sp.
• †Glaphyrites
  • †Glaphyrites sp.
• †Glossites
  • †Glossites depressus – or unidentified comparable form
• †Glossograptus
  • †Glossograptus sp.
• †Glossopteris
  • †Glossopteris sp. 1informal
  • †Glossopteris sp. 2informal
  • †Glossopteris sp. 3informal
  • †Glossopteris sp. 4informal
  • †Glossopteris sp. 5informal
  • †Glossopteris sp. 6informal
  • †Glossopteris sp. 7informal
  • †Glossopteris sp. 8informal
  • †Glossopteris sp. 9informal
• †Glyptagnostus
  • †Glyptagnostus reticulatus
• †Glyptoconus
  • †Glyptoconus sp.
• †Glyptograptus – report made of unidentified related form or using admittedly obsolete nomenclature
• †Glyptograptus
  • †Glyptograptus sp.
• †Glyptorthis
  • †Glyptorthis sp.
  • †Glyptorthis vidari
• †Gondwanorthis
  • †Gondwanorthis calderensis – type locality for species
  • †Gondwanorthis calderensis
• †Goniophora
  • †Goniophora sp.
• †Goniophorina – tentative report
• †Goniophorina
  • †Goniophorina tenuicostata – or unidentified comparable form
  • †Goniophorina tenuicostata
• †Grammysioidea
  • †Grammysioidea capricornus
• †Granulatisporites – tentative report
• †Granulatisporites
  • †Granulatisporites sp.informal
  • †Granulatisporites varigranifer
• †Guandacolithus
  • †Guandacolithus furquei
  • †Guandacolithus sp.
• †Gymnagnostus
  • †Gymnagnostus bolivianus
  • †Gymnagnostus perinflatus
• †Hallograptus
  • †Hallograptus sp.
• †Hallopora
  • †Hallopora sp.
• †Hapalopleura
  • †Hapalopleura clavata
  • †Hapalopleura longicornis – or unidentified related form
  • †Hapalopleura longirachis – type locality for species
  • †Hapalopleura sp.
• †Haplopleura
  • †Haplopleura longicornis
• †Harpides
  • †Harpides neogaeus
• †Harringtonacaste
  • †Harringtonacaste harringtoni
• †Harringtonia – tentative report
  • †Harringtonia sp.
• †Harringtonina
  • †Harringtonina acutiplicata
  • †Harringtonina sp.
• †Hebertella
  • †Hebertella sp.
• †Heliomeroides
  • †Heliomeroides evitti
• †Hemiconcavodonta – type locality for genus
  • †Hemiconcavodonta minuta – type locality for species
  • †Hemiconcavodonta sp.
• †Hemsiella
  • †Hemsiella helgae – type locality for species
• †Hesperonomia
  • †Hesperonomia orientalis
  • †Hesperonomia sp.
• †Hesperonomiella
  • †Hesperonomiella arcuata
  • †Hesperonomiella sp.
• †Hesperorthis
  • †Hesperorthis sp.
• †Heteropecten
  • †Heteropecten cortignasi – type locality for species
  • †Heteropecten paranaensis
  • †Heteropecten sp.
• †Heterorthella
  • †Heterorthella precordillerana – type locality for species
  • †Heterorthella precordillerana
  • †Heterorthella zaplensis
• †Hillyardina – tentative report
  • †Hillyardina sp.
• †Hindella
  • †Hindella crassa – or unidentified comparable form
  • †Hindella crassa
• †Hirnantia
  • †Hirnantia sagittifera
• †Histidella
  • †Histidella sp.
• †Hoekaspis
  • †Hoekaspis diablensis
  • †Hoekaspis megacantha
  • †Hoekaspis schlagintweiti
  • †Hoekaspis sp.
• †Holia
  • †Holia sp.
• †Holmograptus
  • †Holmograptus sp.
• †Holtedahlina – tentative report
  • †Holtedahlina sp.
• †Homagnostus
  • †Homagnostus pehuenchensis
• †Homalopteon – or unidentified comparable form
  • †Homalopteon sp.
• †Homoeospira
  • †Homoeospira antiqua – type locality for species
  • †Homoeospira antiqua
  • †Homoeospira carinata – type locality for species
  • †Homoeospira carinata
• †Homotrypa
  • †Homotrypa obliqua
  • †Homotrypa sp.
• †Hostinella
  • †Hostinella sp.
• †Howellella – tentative report
• †Howellella
  • †Howellella sp.
• †Howellites
  • †Howellites macrostoma – or unidentified comparable form
• †Huacoella
  • †Huacoella sp.
• †Huarpeana
  • †Huarpeana sp.
• †Hudsonospongia
  • †Hudsonospongia cyclostoma
  • †Hudsonospongia irregularis
  • †Hudsonospongia porosa
  • †Hudsonospongia sp.
  • †Hudsonospongia talacastensis – type locality for species
• †Hungioides
  • †Hungioides sp.
• †Hybodus – or unidentified comparable form
  • †Hybodus sp.
• †Hyolithes
  • †Hyolithes amosi
  • †Hyolithes sp.
• †Hypagnostus
  • †Hypagnostus huilichensis
  • †Hypagnostus parvifrons
• †Hypermecaspis
  • †Hypermecaspis armata
  • †Hypermecaspis inermis
  • †Hypermecaspis inflecta
  • †Hypermecaspis sp.
• †Icriodella
  • †Icriodella sp.
• †Idiostrophia
  • †Idiostrophia sp.
• †Illaenopsis – tentative report
• †Illaenopsis
  • †Illaenopsis sp. – type locality for species
  • †Illaenopsis sp.
  • †Illaenopsis stenorhachis
• †Illaenus – tentative report
• †Illaenus
  • †Illaenus sp.
• †Imbricatia – tentative report
  • †Imbricatia sp.
• †Incaia
  • †Incaia sp.
• †Incorthis
  • †Incorthis sp.
• †Incrassospongia
  • †Incrassospongia ramis – type locality for species
  • †Incrassospongia sp.
• †Intihuarella – type locality for genus
  • †Intihuarella simplicidentata – type locality for species
• †Inversella
  • †Inversella arancibiai
  • †Inversella sp.
• †Iridistrophia
  • †Iridistrophia sp.
• †Irmosporites
  • †Irmosporites circumpolaris
• †Isidrophyton
  • †Isidrophyton iniguezii
• †Isochilina – tentative report
  • †Isochilina sp.
• †Isograptus
  • †Isograptus sp.
• †Isorthis – tentative report
• †Isorthis
  • †Isorthis cuyanum – type locality for species
  • †Isorthis cuyanum
  • †Isorthis megamyaria – type locality for species
  • †Isorthis sp.
• †Istragraptus
  • †Istragraptus sp.
• †Jakutoproductus
  • †Jakutoproductus sabattiniae – type locality for species
  • †Jakutoproductus sabattiniae
• †Juanognathus
  • †Juanognathus sp.
• †Jujuyaspis
  • †Jujuyaspis keideli
  • †Jujuyaspis sp.
• †Jujuyops
  • †Jujuyops nonoctubrensis
• †Jumadontus
  • †Jumadontus sp.
• †Jumudontus
  • †Jumudontus sp.
• †Kainella – tentative report
• †Kainella
  • †Kainella conica
  • †Kainella meridionalis – or unidentified comparable form
  • †Kainella meridionalis
  • †Kainella sp.
• †Kainellidae – tentative report
  • †Kainellidae sp.
• †Kayseraspis
  • †Kayseraspis asaphelloides
  • †Kayseraspis brackebuschi
  • †Kayseraspis sp.
• †Keidelia
  • †Keidelia macrophthalma
• †Kentronetes
  • †Kentronetes giolittii – type locality for species
  • †Kentronetes ortegae – type locality for species
  • †Kentronetes vallensis – type locality for species
  • †Kentronetes variabilis – type locality for species
• †Keslingiella – tentative report
  • †Keslingiella teresae – type locality for species
• †Kettneraspis
  • †Kettneraspis sp.
• †Kirchnerala – type locality for genus
  • †Kirchnerala treintamil – type locality for species
• †Kitakamithyris
  • †Kitakamithyris septata
• †Kiwetinokia
  • †Kiwetinokia utahensis – tentative report
• †Kochiproductus
  • †Kochiproductus riojanus
  • †Kochiproductus sp.
• †Kockelella
  • †Kockelella variabilis
• †Kootenia
  • †Kootenia sp.
• †Kormagnostus – tentative report
• †Kormagnostus
  • †Kormagnostus beltensis
  • †Kormagnostus seclusus
• †Kvania – tentative report
• †Kvania
  • †Kvania azulpampensis – type locality for species
  • †Kvania azulpampensis
  • †Kvania lariensis – type locality for species
  • †Kvania lariensis
  • †Kvania primigenia – type locality for species
  • †Kvania primigenia
• †Lagenochitina
  • †Lagenochitina sp.
• †Lamottopora
  • †Lamottopora multispinosa – type locality for species
• †Lampazarorthis
  • †Lampazarorthis bifurcata
  • †Lampazarorthis brachymyaria – type locality for species
  • †Lampazarorthis brachymyaria
• †Lanceolatus
  • †Lanceolatus sp. 1informal
• †Lapazites
  • †Lapazites trinodis – type locality for species
• †Larispongia – type locality for genus
  • †Larispongia magdalenae – type locality for species
• †Lasaguaditas – type locality for genus
• †Lasaguaditas
  • †Lasaguaditas oweni – type locality for species
  • †Lasaguaditas oweni
• †Lasarchopyge – type locality for genus
• †Lasarchopyge
  • †Lasarchopyge benedettoi – type locality for species
  • †Lasarchopyge benedettoi
  • †Lasarchopyge correae – type locality for species
  • †Lasarchopyge correae
  • †Lasarchopyge sp. Ainformal
• †Lasiograptus
  • †Lasiograptus sp.
• †Leangella
  • †Leangella america – type locality for species
  • †Leangella mutabilis – type locality for species
  • †Leangella mutabilis
  • †Leangella sp.
• †Leiagnostus – tentative report
• †Leiagnostus
  • †Leiagnostus perinflatus
  • †Leiagnostus sp.
  • †Leiagnostus turgidulus
• †Leiorhynchus
  • †Leiorhynchus cuyana
• †Leiostegium
  • †Leiostegium sp.
• †Leiotriletes
  • †Leiotriletes gracilis
  • †Leiotriletes petilus
  • †Leiotriletes politus
  • †Leiotriletes sp. Ainformal
  • †Leiotriletes sp. Binformal
• †Lejopyge
  • †Lejopyge laevigata
• †Lenodus
  • †Lenodus sp.
• †Leonaspis
  • †Leonaspis crenata
  • †Leonaspis sp.
• †Leptaena
  • †Leptaena argentina
  • †Leptaena sp.
• †Leptella
  • †Leptella rugosa
  • †Leptella sp.
• †Leptellina – tentative report
• †Leptellina
  • †Leptellina sp.
• †Leptobenthos – type locality for genus
  • †Leptobenthos roartei – type locality for species
• †Leptochirognathus
  • †Leptochirognathus sp.
• †Leptocoelia
  • †Leptocoelia nunezi
• †Leptodesma
  • †Leptodesma bonaerensis – type locality for species
  • †Leptodesma dutoiti – type locality for species
  • †Leptodesma dutoiti
  • †Leptodesma potens – or unidentified comparable form
  • †Leptodesma variabilis
• †Leptograptus
  • †Leptograptus sp.
• †Leptoplastides – tentative report
• †Leptoplastides
  • †Leptoplastides mariana
  • †Leptoplastides marianus
  • †Leptoplastides sp.
• †Leptostrophia – or unidentified comparable form
• †Leptostrophia
  • †Leptostrophia sp.
• †Lesserorthis – type locality for genus
  • †Lesserorthis havliceki – type locality for species
• †Levipustula
  • †Levipustula levis
• †Levisaspis
  • †Levisaspis sp.
• †Lichas
  • †Lichas argentina – type locality for species
  • †Lichas laciniatus – or unidentified comparable form
• †Lingula
  • †Lingula sp.
• †Lingulella – tentative report
• †Lingulella
  • †Lingulella sp.
• †Lipanella – type locality for genus
  • †Lipanella purmamarcensis – type locality for species
• †Lipanorthis – type locality for genus
• †Lipanorthis
  • †Lipanorthis andinus – type locality for species
  • †Lipanorthis andinus
  • †Lipanorthis santalaurae – type locality for species
  • †Lipanorthis santalaurae
• †Lissochonetes – tentative report
• †Lissochonetes
  • †Lissochonetes sp.
• †Lissocoelia
  • †Lissocoelia sp.
• †Lituites
  • †Lituites sp.
• †Lloydia
  • †Lloydia douglasi
  • †Lloydia sp.
• †Lodesia
  • †Lodesia sp.
• †Loganograptus
  • †Loganograptus sp.
• †Lomaella – type locality for genus
  • †Lomaella primoris – type locality for species
  • †Lomaella sanjuanina – type locality for species
• †Lonchodomas
  • †Lonchodomas sp.
  • †Lonchodomas suriensis
• †Longiscula – tentative report
  • †Longiscula sp.
• †Lophotriletes
  • †Lophotriletes sp.informal
• †Lotagnostus
  • †Lotagnostus lasherensis
  • †Lotagnostus llamaensis
  • †Lotagnostus peladensis – tentative report
  • †Lotagnostus peladensis
  • †Lotagnostus shergoldi
  • †Lotagnostus sp.
• †Loxonema
  • †Loxonema sp.
• †Lycopodiopsis
  • †Lycopodiopsis sp. 1informal
• †Machairagnostus
  • †Machairagnostus sp.
  • †Machairagnostus tmetus – or unidentified comparable form
  • †Machairagnostus tmetus
• †Maclurites
  • †Maclurites sp.
• †Macrocystella
  • †Macrocystella sp.
• †Macrogrammus
  • †Macrogrammus pengi
  • †Macrogrammus rafi
• †Malayaspira
  • †Malayaspira rugosa – or unidentified related form
• †Manocrinus
  • †Manocrinus maldigitatus
• †Marginura
  • †Marginura yachalensis
• †Megadesmus – tentative report
  • †Megadesmus sp.
• †Megalaspidella
  • †Megalaspidella kayseri
  • †Megalaspidella sp.
• †Megalaspis – tentative report
• †Megalaspis
  • †Megalaspis pugiocauda
  • †Megalaspis saltaensis
• †Megarachne – type locality for genus
  • †Megarachne servinei – type locality for species
• †Megistaspis
  • †Megistaspis kayseri
  • †Megistaspis sp.
• †Megistophyllum
  • †Megistophyllum sp. 1informal
• †Mekynophrys
  • †Mekynophrys nanna
• †Mendacella
  • †Mendacella sp.
• †Mendolaspis
  • †Mendolaspis salagastensis
  • †Mendolaspis sp.
• †Merismopteria
  • †Merismopteria salinensis
• †Meristella
  • †Meristella precordillerana
• †Merlinia
  • †Merlinia sp.
• †Metabolograptus
  • †Metabolograptus persculptus
• †Metapilekia – tentative report
• †Metapilekia
  • †Metapilekia bilirata
• †Metaplasia – tentative report
• †Metaplasia
  • †Metaplasia baldisi
  • †Metaplasia lomaensis
  • †Metaplasia sp.
• †Micragnostus – tentative report
• †Micragnostus
  • †Micragnostus calviformis
  • †Micragnostus chiushuensis
  • †Micragnostus sp.
  • †Micragnostus vilonii
• †Micromitra
  • †Micromitra sp.
• †Mimella
  • †Mimella sp.
• †Miraspis
  • †Miraspis sp.
• †Modiolopsis
  • †Modiolopsis sp.
• †Modiolus
  • †Modiolus sp.
• †Modiomorpha
  • †Modiomorpha sp.
• †Mollesella
  • †Mollesella planiventralis
• †Molongella
  • †Molongella keideli – type locality for species
• †Monocostodus
  • †Monocostodus servierensis
• †Monograptus
  • †Monograptus sp.
• †Monorthis
  • †Monorthis sp.
  • †Monorthis transversa
• †Monticulipora
  • †Monticulipora sp.
• †Mooreoceras
  • †Mooreoceras zalazarense
• †Mourlonia
  • †Mourlonia cuneoi – type locality for species
  • †Mourlonia poperimensis
  • †Mourlonia sp.
• †Moyerella
  • †Moyerella spinata – type locality for species
• †Mucronaspis
  • †Mucronaspis sp.
• †Multispongia – type locality for genus
  • †Multispongia aspera – type locality for species
• †Mutationella
  • †Mutationella sp.
• †Myofossa
  • †Myofossa antiqua
• †Myonia – tentative report
• †Myonia
  • †Myonia argentinensis – type locality for species
  • †Myonia argentinensis
  • †Myonia sp. – type locality for species
  • †Myonia sp.
• †Myoplusia
  • †Myoplusia sulcata
• †Naiadites – tentative report
• †Naiadites
  • †Naiadites sp.
  • †Naiadites teckaensis – type locality for species
• †Nanillaenus
  • †Nanillaenus gualcamayensis
  • †Nanillaenus sp.
• †Nannopeltis
  • †Nannopeltis modesta
  • †Nannopeltis sp.
• †Nanorthis – tentative report
• †Nanorthis
  • †Nanorthis purmamarcaensis – type locality for species
  • †Nanorthis purmamarcaensis
  • †Nanorthis sp.
• †Natasia
  • †Natasia boliviensis
  • †Natasia sp.
• †Nemagraptus
  • †Nemagraptus gracilis
  • †Nemagraptus sp.
• †Neoagnostus
  • †Neoagnostus sp.
• †Neochonetes
  • †Neochonetes pegnonensis – type locality for species
  • †Neochonetes sp.
• †Neoplatyteichum
  • †Neoplatyteichum barrealensis
  • †Neoplatyteichum sp.
• †Neospirifer
  • †Neospirifer leoncitensis – tentative report
  • †Neospirifer leoncitensis
• †Neothlipsurella
  • †Neothlipsurella jachalensis – type locality for species
• †Neseuretus
  • †Neseuretus kobayashi
  • †Neseuretus sp.
• †Netschajewia – tentative report
  • †Netschajewia sp.
• †Nexospingia
  • †Nexospingia sp.
• †Nexospongia – type locality for genus
  • †Nexospongia sillaensis – type locality for species
• †Nicholsonella
  • †Nicholsonella sp.
• †Nieszkowskia
  • †Nieszkowskia jakei
  • †Nieszkowskia sp.
  • †Nieszkowskia yongyii
• †Nileus
  • †Nileus sp.
• †Niobides
  • †Niobides armatus
  • †Niobides sp.
• †Niobina
  • †Niobina sp.
  • †Niobina taurina
• †Niquivilia
  • †Niquivilia extensa
  • †Niquivilia sp.
• †Nodospira
  • †Nodospira sp.
• †Noeggerathiopsis
  • †Noeggerathiopsis hislopi
• †Normalograptus
  • †Normalograptus normalis
• †Nortite
  • †Nortite sp.
• †Nothorthis
  • †Nothorthis marginata – type locality for species
  • †Nothorthis marginata
• †Notonychia – type locality for genus
  • †Notonychia emmae – type locality for species
• †Notopeltis
  • †Notopeltis orthometopa
  • †Notopeltis orthometopoa
  • †Notopeltis sp.
• †Notorthisina
  • †Notorthisina musculosa
• †Nucleospira
  • †Nucleospira sp.
• †Nuculanella
  • †Nuculanella camachoi
• †Nuculavus
  • †Nuculavus levatiformis
• †Nuculites
  • †Nuculites argentinum
  • †Nuculites sp.
• †Nuculoidea – tentative report
  • †Nuculoidea sp.
• †Nuculopsis – tentative report
• †Nuculopsis
  • †Nuculopsis sp.
• †Nuculosis – tentative report
  • †Nuculosis sp.
• †Nugnecella
  • †Nugnecella sp.
• †Nugnela
  • †Nugnela sp.
• †Nuia
  • †Nuia sp.
• †Oanduporella
  • †Oanduporella sp.
• †Obolus
  • †Obolus sp.
• †Occultocystis – type locality for genus
  • †Occultocystis koeneni – type locality for species
• †Oedorhachis
  • †Oedorhachis typicalis
• †Oelandoceras
  • †Oelandoceras sp.
• †Oelandodus
  • †Oelandodus sp.
• †Oelandograptus
  • †Oelandograptus sp.
• †Oepikodus
  • †Oepikodus evae
  • †Oepikodus sp.
• †Oepikoides
  • †Oepikoides sp.
• †Ogyginus
  • †Ogyginus sp.
• †Ogygiocaris
  • †Ogygiocaris araiorhachis
  • †Ogygiocaris sp.
• †Ogygitella
  • †Ogygitella australis
• †Oistodus
  • †Oistodus sp.
• †Oncagnostus
  • †Oncagnostus sp.
• †Oneotodus
  • †Oneotodus sp.
• †Onychopyge
  • †Onychopyge argentina
  • †Onychopyge harringtoni – type locality for species
  • †Onychopyge longispina
  • †Onychopyge plagiacantha
  • †Onychopyge riojana
  • †Onychopyge sp.
• †Oopsites
  • †Oopsites sp.
• †Ophileta – tentative report
• †Ophileta
  • †Ophileta sp.
• †Opipeuter
  • †Opipeuter sp.
• †Orbiculoidea
  • †Orbiculoidea sp.
• †Orectodictya
  • †Orectodictya pansa
• †Oriocrassatella – tentative report
  • †Oriocrassatella sp.
• †Orometopus
  • †Orometopus notatifrons
  • †Orometopus pyrifrons
• †Orthambonites
  • †Orthambonites sp.
• †Orthidium
  • †Orthidium prominens – type locality for species
  • †Orthidium prominens
  • †Orthidium sp.
• †Orthis
  • †Orthis sp.
• †Orthoceras – tentative report
  • †Orthoceras sp.
• †Orthograptus – tentative report
• †Orthograptus
  • †Orthograptus sp.
• †Orthoretiolites
  • †Orthoretiolites sp.
• †Orthostrophella
  • †Orthostrophella sp. – type locality for species
• †Orthostrophia
  • †Orthostrophia meridionalis – type locality for species
• †Orthotheca
  • †Orthotheca sp.
• †Ottokaria
  • †Ottokaria sp. 1informal
• †Paciphacops
  • †Paciphacops argentinus
• †Paganzophlebia – type locality for genus
  • †Paganzophlebia polyclada – type locality for species
• †Palaeoconcha
  • †Palaeoconcha sp.
• †Palaeolima
  • †Palaeolima antinaoensis
  • †Palaeolima sp.
• †Palaeoneilo – tentative report
• †Palaeoneilo
  • †Palaeoneilo amosi
  • †Palaeoneilo concentrica – or unidentified related form
  • †Palaeoneilo farbesi – or unidentified comparable form
  • †Palaeoneilo sp. – type locality for species
  • †Palaeoneilo sp.
• †Palaeophycus
  • †Palaeophycus sp.
• †Palaeovittaria
  • †Palaeovittaria sp. 1informal
• †Palorthoceras – type locality for genus
  • †Palorthoceras kayseri – type locality for species
• †Panderina – tentative report
  • †Panderina ambigua
• †Panderodus
  • †Panderodus sp.
• †Parabasilicus – tentative report
• †Parabasilicus
  • †Parabasilicus typicalis – or unidentified related form
  • †Parabasilicus typicalis – or unidentified comparable form
• †Parabolina
  • †Parabolina argentina
  • †Parabolina frequens
  • †Parabolina kobayashii
  • †Parabolina pheidolopyge
  • †Parabolina sp.
• †Parabolinella – tentative report
• †Parabolinella
  • †Parabolinella argentinenesis
  • †Parabolinella argentinensis
  • †Parabolinella coelatifrons
  • †Parabolinella sp.
  • †Parabolinella sp. Ainformal
  • †Parabolinella sp. Binformal
  • †Parabolinella sp. Cinformal
  • †Parabolinella triarthroides
  • †Parabolinella triathroides
  • †Parabolinella tumifrons – or unidentified comparable form
• †Paracalamites
  • †Paracalamites sp. 1informal
• †Paraconularia
  • †Paraconularia acuminata
  • †Paraconularia pulcheria
  • †Paraconularia sp.
  • †Paraconularia sueroi
  • †Paraconularia tepuelensis
• †Paracordylodus
  • †Paracordylodus sp.
• †Paracyclostomiceras
  • †Paracyclostomiceras sp.
• †Paradelograptus – tentative report
• †Paradelograptus
  • †Paradelograptus sp.
  • †Paradelograptus spp.
• †Paraglossograptus
  • †Paraglossograptus sp.
  • †Paraglossograptus tentaculatus
• †Paralenorthis
  • †Paralenorthis riojanus
  • †Paralenorthis sp.
  • †Paralenorthis suriensis
  • †Paralenorthis vulgaris
• †Parallelodon – tentative report
  • †Parallelodon quichaurensis – type locality for species
• †Parallelostrophia – type locality for genus
• †Parallelostrophia
  • †Parallelostrophia septata – type locality for species
  • †Parallelostrophia septata
• †Paranarkemina – type locality for genus
• †Paranarkemina
  • †Paranarkemina kurtzi – type locality for species
• †Paranocladus
  • †Paranocladus sp. 1informal
• †Paranolcladus
  • †Paranolcladus sp.
• †Parapanderodus
  • †Parapanderodus sp.
• †Parapanderosus
  • †Parapanderosus sp.
• †Paraparchites – tentative report
  • †Paraparchites sp.
• †Parapilekia
  • †Parapilekia sp.
• †Paraplicatolina
  • †Paraplicatolina acantha – type locality for species
• †Paroistodus
  • †Paroistodus sp.
• †Paromalomena
  • †Paromalomena polonica
• †Parvohallopora
  • †Parvohallopora parvula
• †Patellispongia
  • †Patellispongia argentina – type locality for species
  • †Patellispongia oculata – or unidentified comparable form
  • †Patellispongia oculata
  • †Patellispongia robusta – type locality for species
  • †Patellispongia robusta
  • †Patellispongia sp.
• †Pateraspis
  • †Pateraspis sp.
• †Paurorthis
  • †Paurorthis sp.
• †Pecopteris
  • †Pecopteris sp. 1informal
  • †Pecopteris sp. 2informal
  • †Pecopteris sp. 3informal
  • †Pecopteris sp. 4informal
  • †Pecopteris sp. 5informal
• †Peelerophon
  • †Peelerophon oehlerti – type locality for species
  • †Peelerophon oehlerti
  • †Peelerophon sp.
• †Peltabellia
  • †Peltabellia sp.
• †Peltocare
  • †Peltocare sp.
• †Pemphigaspis
  • †Pemphigaspis perforata – type locality for species
• †Pericospira
  • †Pericospira pericoensis
  • †Pericospira riojanensis
  • †Pericospira sanjuanensis
• †Periodon
  • †Periodon sp.
• †Permophorus
  • †Permophorus sp.
• †Peruvispira – report made of unidentified related form or using admittedly obsolete nomenclature
• †Peruvispira
  • †Peruvispira australis
  • †Peruvispira sp.
  • †Peruvispira sueroi – type locality for species
  • †Peruvispira sueroi
• †Petrodus
  • †Petrodus sp.
• †Phacops
  • †Phacops argentinus
• †Phakelodus
  • †Phakelodus elongatus
• †Phanassymetria
  • †Phanassymetria sp. – type locality for species
• †Pharostomina
  • †Pharostomina sp.
  • †Pharostomina tenuisulcata – type locality for species
• †Phestia – tentative report
• †Phestia
  • †Phestia sp. – type locality for species
  • †Phestia sp.
  • †Phestia sp. IVinformal
  • †Phestia sp. Vinformal
  • †Phestia tepuelensis
• †Philiasptilon
  • †Philiasptilon huenickeni – type locality for species
• †Pholadella
  • †Pholadella radiata
• †Phragmodus
  • †Phragmodus sp.
• †Phragmorthis
  • †Phragmorthis sp.
• †Phyllograptus
  • †Phyllograptus sp.
• †Phylloporina
  • †Phylloporina sassitoensis – type locality for species
• †Phyllotheca
  • †Phyllotheca sp. 1informal
  • †Phyllotheca sp. 2informal
• †Phyllothecotriletes – tentative report
• †Phyllothecotriletes
  • †Phyllothecotriletes aggregatus
  • †Phyllothecotriletes belloyensis – or unidentified comparable form
• †Piatnitzkia
  • †Piatnitzkia borreloi
• †Picnotreta
  • †Picnotreta robusta – type locality for species
• †Piloceras
  • †Piloceras sp.
• †Pinatotoechia
  • †Pinatotoechia acantha
• †Pircawayra
  • †Pircawayra peregrina
• †Platillaenus
  • †Platillaenus sp.
• †Platycalymene
  • †Platycalymene trapezoidalis
• †Platyceras
  • †Platyceras sp.
• †Platystrophia
  • †Platystrophia sp.
• †Plectatrypa
  • †Plectatrypa sp.
• †Plectodina
  • †Plectodina sp.
• †Plectodonta
  • †Plectodonta minima – type locality for species
  • †Plectodonta minima
• †Plectonotus
  • †Plectonotus sp.
• †Plectothyrella
  • †Plectothyrella crassicosta
  • †Plectothyrella sp.
• †Plesioparabolina
  • †Plesioparabolina proparia
• †Plethopeltis
  • †Plethopeltis obtusus
• †Pleurochonetes – tentative report
  • †Pleurochonetes sp.
• †Pleurodictyum
  • †Pleurodictyum sp.
• †Pleurophorella
  • †Pleurophorella elongata – type locality for species
  • †Pleurophorella elongata
• †Pleurorthis
  • †Pleurorthis sp.
• †Pleurothyrella
  • †Pleurothyrella knodi
• †Pleurotomaria
  • †Pleurotomaria sp.
• †Plicanoplia
  • †Plicanoplia sp.
• †Plicatolina
  • †Plicatolina scalpa
  • †Plicatolina scalpta
  • †Plicatolina sp.
• †Plicoplasia
  • †Plicoplasia planoconvexa – or unidentified comparable form
• †Pliomera – tentative report
• †Pliomera
  • †Pliomera sp.
  • †Pliomera tmetophrys
• †Pliomeridius
  • †Pliomeridius sp.
  • †Pliomeridius sulcatus
• †Pliomerina
  • †Pliomerina peripata
  • †Pliomerina sp.
• †Pliomeroides
  • †Pliomeroides deferrariisi
• †Pliomerops – tentative report
  • †Pliomerops sp.
• †Polonodus
  • †Polonodus sp.
• †Polycaulodus
  • †Polycaulodus sp.
• †Polypora
  • †Polypora sp.
• †Pomatotrema
  • †Pomatotrema sp.
• †Porambonites
  • †Porambonites sp.
• †Porterfieldia
  • †Porterfieldia jachalensis
  • †Porterfieldia sp.
• †Praectenodonta
  • †Praectenodonta alternata
• †Praenucula – tentative report
• †Praenucula
  • †Praenucula plicata
  • †Praenucula sp.
• †Praeundulomya
  • †Praeundulomya moreli – type locality for species
• †Prasopora
  • †Prasopora argentina
• †Primitiella – tentative report
  • †Primitiella sp.
• †Prioniodus
  • †Prioniodus sp.
• †Proceratopyge
  • †Proceratopyge incondita
  • †Proceratopyge inexpectata
• †Productorthis
  • †Productorthis angulensis
  • †Productorthis cienagaensis
  • †Productorthis sp.
• †Proetiella
  • †Proetiella tellechaei
• †Prokrustia
  • †Prokrustia sp.
• †Promopalaeaster – type locality for genus
  • †Promopalaeaster quadriserialis – type locality for species
• †Promytilus – tentative report
• †Promytilus
  • †Promytilus acinaciformis – type locality for species
  • †Promytilus acinaciformis
  • †Promytilus patagonicus
  • †Promytilus sp.
• †Proparaparchites
  • †Proparaparchites sp.
• †Prosopiscus
  • †Prosopiscus sp.
• †Prospectatrix
  • †Prospectatrix sp.
• †Protachilleum
  • †Protachilleum kayseri
  • †Protachilleum sp.
• †Proterocameroceras
  • †Proterocameroceras sp.
• †Protetiella
  • †Protetiella tellecheai
• †Proteuloma
  • †Proteuloma sp. – type locality for species
• †Protochonetes – tentative report
  • †Protochonetes sp.
• †Protocycloceras
  • †Protocycloceras sp.
• †Protocyptendoceras
  • †Protocyptendoceras fuenzalidae
  • †Protocyptendoceras sp.
• †Protohesperonomia
  • †Protohesperonomia sp.
• †Protoleptostrophia
  • †Protoleptostrophia concinna
• †Protomya – tentative report
  • †Protomya sp.
• †Protopanderodus
  • †Protopanderodus sp.
• †Protopeltura – tentative report
• †Protopeltura
  • †Protopeltura mesembria
  • †Protopeltura sp.
  • †Protopeltura vizcachensis – type locality for species
• †Protopliomerops
  • †Protopliomerops sp.
• †Protoprioniodus
  • †Protoprioniodus sp.
• †Protorthisina – type locality for genus
  • †Protorthisina simplex – type locality for species
• †Protoskenidioides
  • †Protoskenidioides revelata – or unidentified comparable form
• †Prototreta
  • †Prototreta mimica – or unidentified comparable form
• †Psarodictyum
  • †Psarodictyum magna – type locality for species
  • †Psarodictyum sp.
• †Pseudagnostus
  • †Pseudagnostus idalis
• †Pseudobasilicus
  • †Pseudobasilicus sp.
• †Pseudobaylea
  • †Pseudobaylea poperimensis
• †Pseudodainella
  • †Pseudodainella lata
• †Pseudoharpatagnostus
  • †Pseudoharpatagnostus corrugatus
  • †Pseudoharpatagnostus tmetus
• †Pseudohysterolenus
  • †Pseudohysterolenus infidus
• †Pseudokainella
  • †Pseudokainella keideli
  • †Pseudokainella lata
  • †Pseudokainella pustulosa
  • †Pseudokainella sp.
• †Pseudoleda
  • †Pseudoleda minuta
• †Pseudooneotodus
  • †Pseudooneotodus beckmanni
  • †Pseudooneotodus sp.
• †Pseudoperonopsis
  • †Pseudoperonopsis zuninoi
• †Pseudophyllograptus
  • †Pseudophyllograptus sp.
• †Pseudotalbontina
  • †Pseudotalbontina sp.
• †Pseudotalbotina
  • †Pseudotalbotina ovalis – type locality for species
• †Psilocara
  • †Psilocara sp.
• †Pterinocrinus – tentative report
  • †Pterinocrinus australis – type locality for species
• †Pterograptus
  • †Pterograptus sp.
• †Ptiloconus
  • †Ptiloconus sp.
• †Ptilodictya
  • †Ptilodictya intermedia
• †Ptilograptus
  • †Ptilograptus sp.
• †Ptychagnostus
  • †Ptychagnostus aculeatus
  • †Ptychagnostus cuyanus
• †Ptychoglyptus
  • †Ptychoglyptus sp.
• †Ptychopteria
  • †Ptychopteria liagracielae
• †Pulchrilamina
  • †Pulchrilamina sp.
• †Punctatisporites
  • †Punctatisporites glaber
  • †Punctatisporites irrasus – or unidentified comparable form
  • †Punctatisporites sp.informal
• †Punctolira
  • †Punctolira sp.
• †Purmanarcoceras
  • †Purmanarcoceras sp.
• †Pustulatia
  • †Pustulatia jachalensis
• †Pustulatisporites
  • †Pustulatisporites papillosus – or unidentified comparable form
• †Pygodus
  • †Pygodus anserinus
• †Pyramus
  • †Pyramus primigenius
• †Quadratonucula
  • †Quadratonucula argentinensis
  • †Quadratonucula parva
• †Quechuacrinus – type locality for genus
  • †Quechuacrinus tisca – type locality for species
• †Radicalcarocrinus – type locality for genus
  • †Radicalcarocrinus huenickeni – type locality for species
• †Rafinesquina
  • †Rafinesquina relicua – type locality for species
  • †Rafinesquina reliqua
• †Raistrickia
  • †Raistrickia aculeata – or unidentified comparable form
  • †Raistrickia densa
  • †Raistrickia sp.informal
• †Ramseyocrinus – type locality for genus
  • †Ramseyocrinus argentinus – type locality for species
• †Ranapeltis
  • †Ranapeltis rowlandi – or unidentified related form
• †Raphiophorus – tentative report
  • †Raphiophorus lamasi
  • †Raphiophorus sp.
• †Reacalymene
  • †Reacalymene sp.
• †Redonia
  • †Redonia riojana
  • †Redonia sp.
  • †Redonia suriensis
• †Reginea – tentative report
  • †Reginea sp.
• †Remopleuridioides
  • †Remopleuridioides preandinus
• †Reteograptus
  • †Reteograptus sp.
• †Reticularia
  • †Reticularia punillana – type locality for species
• †Reticycloceras – tentative report
  • †Reticycloceras sp.
• †Retispira
  • †Retispira patagoniensis – type locality for species
  • †Retispira patagoniensis
• †Retusotriletes
  • †Retusotriletes anfractus
  • †Retusotriletes simplex
• †Reuschella
  • †Reuschella sp.
• †Reutterodus
  • †Reutterodus sp.
• †Rhabdinopleura
  • †Rhabdinopleura sp.
• †Rhabdinopora
  • †Rhabdinopora norvegica – or unidentified comparable form
  • †Rhabdinopora socialis – or unidentified comparable form
  • †Rhabdinopora sp.
• †Rhabdochitina
  • †Rhabdochitina sp.
• †Rhadinopleura
  • †Rhadinopleura eurycephala
• †Rhenopyrgus
  • †Rhenopyrgus piojoensis – type locality for species
• †Rhipidopsis
  • †Rhipidopsis sp. 1informal
• †Rhodesognathus
  • †Rhodesognathus sp.
• †Rhombampyx
  • †Rhombampyx sp.
• †Rhopalocoelia
  • †Rhopalocoelia clarkii
  • †Rhopalocoelia rama – type locality for species
  • †Rhopalocoelia regularis
  • †Rhopalocoelia sp.
  • †Rhopalocoelia tenuis
• †Rhynchopora
  • †Rhynchopora sp.
• †Rhynchorthoceras
  • †Rhynchorthoceras minor – type locality for species
• †Ribeiria
  • †Ribeiria compressa – or unidentified comparable form
  • †Ribeiria francae – type locality for species
  • †Ribeiria pojetai – type locality for species
  • †Ribeiria sp.
  • †Ribeiria spinosa
• †Rigattoptera – type locality for genus
  • †Rigattoptera ornellasae – type locality for species
• †Robsonoceras
  • †Robsonoceras sp.
• †Rossaspis
  • †Rossaspis rossi
  • †Rossaspis sp.
• †Rossodus
  • †Rossodus sp.
• †Rostricellula
  • †Rostricellula sp.
• †Roundya
  • †Roundya sp.
• †Rugospongia – type locality for genus
• †Rugospongia
  • †Rugospongia sp.
  • †Rugospongia viejoensis – type locality for species
• †Rugostrophia
  • †Rugostrophia protoandina
• †Sacabambaspis
  • †Sacabambaspis janvieri
• †Sagavia
  • †Sagavia durandi – type locality for species
• †Sagittodontus
  • †Sagittodontus sp.
• †Salopella – or unidentified comparable form
  • †Salopella sp.
• †Salopina
  • †Salopina messendenensis – or unidentified comparable form
  • †Salopina missendenensis – or unidentified comparable form
  • †Salopina sanjuanensis – type locality for species
  • †Salopina sp.
• †Saltarella
  • †Saltarella sp.
• †Saltaspis
  • †Saltaspis steinmanni
• †Salterella
  • †Salterella maccullochi
• †Saltite
  • †Saltite sp.
• †Saltospirifer – type locality for genus
  • †Saltospirifer guevarii – type locality for species
  • †Saltospirifer guevarii
• †Samaropsis
  • †Samaropsis sp. 1informal
  • †Samaropsis sp. 2informal
  • †Samaropsis sp. 3informal
• †Sanbernardaspis
  • †Sanbernardaspis pygacantha
• †Sanguinolites – tentative report
• †Sanguinolites
  • †Sanguinolites freytesi
  • †Sanguinolites sp.
  • †Sanguinolites turneri
• †Sanjuanampix
  • †Sanjuanampix sp.
• †Sanjuanella
  • †Sanjuanella plicata
  • †Sanjuanella sp.
• †Sanjuanetes – tentative report
  • †Sanjuanetes andina – tentative report
• †Sanjuania – type locality for genus
  • †Sanjuania dorsisulcata – type locality for species
• †Scalpellodus
  • †Scalpellodus sp.
• †Scandodus
  • †Scandodus sp.
• †Schizodus
  • †Schizodus cycloliratus – type locality for species
  • †Schizodus paucus
  • †Schizodus sp.
• †Schizotreta
  • †Schizotreta sp.
• †Scolopodus
  • †Scolopodus sp.
• †Scotoharpes
  • †Scotoharpes sp.
• †Semiacontiodus – tentative report
• †Semiacontiodus
  • †Semiacontiodus sp.
• †Septosyringothyris
  • †Septosyringothyris jaguelensis – or unidentified related form
  • †Septosyringothyris jaguelensis
  • †Septosyringothyris keideli – or unidentified related form
  • †Septosyringothyris keideli
  • †Septosyringothyris sp.
• †Seudomacronotella
  • †Seudomacronotella sp.
• †Shumardia
  • †Shumardia erquensis
  • †Shumardia minutula
  • †Shumardia sp.
• †Sicorhynchia – tentative report
  • †Sicorhynchia sp.
• †Skenidioides
  • †Skenidioides kayseri
  • †Skenidioides sp.
• †Solopina
  • †Solopina sanjuanensis
• †Sowerbyella
  • †Sowerbyella sp.
• †Sphaerocare – report made of unidentified related form or using admittedly obsolete nomenclature
• †Sphaerocare
  • †Sphaerocare globifrons – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Sphaerocare globifrons
• †Sphecorydaloides – type locality for genus
  • †Sphecorydaloides lucchesei – type locality for species
• †Sphenophyllum
  • †Sphenophyllum sp. 1informal
  • †Sphenophyllum sp. 2informal
  • †Sphenophyllum sp. 3informal
• †Sphenopteris
  • †Sphenopteris sp. 1informal
  • †Sphenopteris sp. 2informal
  • †Sphenopteris sp. 3informal
• †Sphenotomorpha
  • †Sphenotomorpha ulrichi – or unidentified comparable form
• †Spinoplasia
  • †Spinoplasia plobletensis
• †Spiriferellina
  • †Spiriferellina octoplicata
  • †Spiriferellina sp.
• †Spirilira
  • †Spirilira gonzalezi
  • †Spirilira tenuis – type locality for species
• †Staufferella
  • †Staufferella sp.
• †Staurograptus
  • †Staurograptus dichotomus
• †Stegerhynchus
  • †Stegerhynchus pusillum
• †Stenoblepharum
  • †Stenoblepharum astinil – type locality for species
  • †Stenoblepharum astinil
  • †Stenoblepharum sp.
• †Stenozone
  • †Stenozone argentinus
• †Stolodus
  • †Stolodus sp.
• †Strachanognathus
  • †Strachanognathus sp.
• †Straparollus
  • †Straparollus sp.
• †Streblochondria – tentative report
• †Streblochondria
  • †Streblochondria sp.
  • †Streblochondria sueroi – type locality for species
  • †Streblochondria sueroi
• †Streblopteria
  • †Streblopteria lagunensis
  • †Streblopteria minuta – type locality for species
  • †Streblopteria minuta
  • †Streblopteria montgomeryi – type locality for species
  • †Streblopteria montgomeryi
  • †Streblopteria sp. – type locality for species
  • †Streblopteria sp.
• †Strepsodiscus
  • †Strepsodiscus austrinus – type locality for species
  • †Strepsodiscus austrinus
• †Streptorhynchus – tentative report
• †Streptorhynchus
  • †Streptorhynchus inaequiornatus
  • †Streptorhynchus sp.
• †Striatodontus
  • †Striatodontus sp.
• †Strictagnostus – tentative report
  • †Strictagnostus micropeltis
  • †Strictagnostus sp.
• †Strobeus
  • †Strobeus sp.
• †Stutchburia
  • †Stutchburia sp.
• †Sueroa – type locality for genus
• †Sueroa
  • †Sueroa andreisi – type locality for species
  • †Sueroa andreisi
  • †Sueroa chubutensis
• †Sueroceras
  • †Sueroceras irregulare
  • †Sueroceras sp.
• †Suria
  • †Suria ovalis
• †Suriaspis
  • †Suriaspis sp.
• †Suriorthis
  • †Suriorthis depressus
• †Symphysurus
  • †Symphysurus sp.
• †Synhomalanotus
  • †Synhomalanotus kobayashii
• †Synhomalonotus
  • †Synhomalonotus sp.
• †Syntrophia
  • †Syntrophia sanjuanina – type locality for species
  • †Syntrophia sanjuanina
• †Syringothyris
  • †Syringothyris feruglioi – type locality for species
• †Taffia
  • †Taffia anomala
  • †Taffia sp.
• †Taiophlebia
  • †Taiophlebia ferreirai – type locality for species
• †Talacastella
  • †Talacastella herrerai
• †Talacastonia – type locality for genus
• †Talacastonia
  • †Talacastonia chela – type locality for species
  • †Talacastonia sp.
• †Taphrorthis
  • †Taphrorthis sp.
• †Tarfaya – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Tarfaya grandis
• †Tarphophragma
  • †Tarphophragma multitabulata – or unidentified related form
• †Telephina
  • †Telephina sp.
• †Teridontus
  • †Teridontus obesus
  • †Teridontus sp.
• †Terograptus
  • †Terograptus sp.
• †Tetragraptus
  • †Tetragraptus akzharensis – or unidentified comparable form
  • †Tetragraptus akzharensis
  • †Tetragraptus amii – or unidentified comparable form
  • †Tetragraptus approximatus
  • †Tetragraptus bigsbyi
  • †Tetragraptus phyllograptoides
  • †Tetragraptus quadribrachiatus – or unidentified comparable form
  • †Tetragraptus quadribrachiatus
  • †Tetragraptus reclinatus – or unidentified comparable form
  • †Tetragraptus sp.
• †Tetraporina
  • †Tetraporina horologia
  • †Tetraporina sibirica – or unidentified comparable form
  • †Tetraporina sp.informal
• †Thalassinoides
  • †Thalassinoides paradoxicus
• †Thamnograptus
  • †Thamnograptus sp.
• †Thlipsurella
  • †Thlipsurella ellipsoclefta – or unidentified related form
• †Thysanopyge – tentative report
• †Thysanopyge
  • †Thysanopyge argentina
  • †Thysanopyge clavijoi
  • †Thysanopyge latelimbata
  • †Thysanopyge sp.
• †Tissintia
  • †Tissintia sp.
• †Tivertonia
  • †Tivertonia jachalensis
  • †Tivertonia pillahuincensis – type locality for species
• †Toernquistia – type locality for genus
• †Toernquistia
  • †Toernquistia sanchezae – type locality for species
  • †Toernquistia sanchezae
  • †Toernquistia sp.
• †Tolmachovia
  • †Tolmachovia andina – type locality for species
  • †Tolmachovia sp.
• †Tomagnostella
  • †Tomagnostella exsculpta
• †Tomiopsis
  • †Tomiopsis harringtoni – type locality for species
  • †Tomiopsis harringtoni
• †Tornquistia – tentative report
  • †Tornquistia sp.
• †Tortilicaulis – or unidentified comparable form
  • †Tortilicaulis sp.
• †Triarthrus
  • †Triarthrus jachalensis
  • †Triarthrus parchaensis
  • †Triarthrus parchanensis
  • †Triarthrus parchensis
  • †Triarthrus rectifrons
  • †Triarthrus shinetonensis
  • †Triarthrus sp.
  • †Triarthrus tertragonalis
• †Trigonirhynchia
  • †Trigonirhynchia sp.
• †Trigonoconcha – type locality for genus
  • †Trigonoconcha acuta – type locality for species
• †Trigonodictya
  • †Trigonodictya cirrita
  • †Trigonodictya parvula
• †Trigonograptus
  • †Trigonograptus sp.
• †Trigonostrophia
  • †Trigonostrophia reversa
• †Trigonotreta – tentative report
• †Trigonotreta
  • †Trigonotreta sp.
• †Trilobagnostus – tentative report
  • †Trilobagnostus sp.
• †Trimerus
  • †Trimerus flexuosus
  • †Trimerus grandis
  • †Trimerus kayseri
  • †Trimerus sp.
• †Trinodus – tentative report
• †Trinodus
  • †Trinodus jujuyensis
  • †Trinodus saltaensis
  • †Trinodus sp.
• †Trinucleus
  • †Trinucleus sp.
• †Trispinatia
  • †Trispinatia sp.
• †Tristichograptus
  • †Tristichograptus sp.
• †Tritoechia
  • †Tritoechia mollesensis
  • †Tritoechia preandina – type locality for species
  • †Tritoechia preandina
  • †Tritoechia prima – type locality for species
  • †Tritoechia prima
  • †Tritoechia sp.
• †Tropidodiscus
  • †Tropidodiscus sp.
• †Tropodus
  • †Tropodus sp.
• †Tupacsala – type locality for genus
  • †Tupacsala niunamenos – type locality for species
• †Tupelosia – type locality for genus
  • †Tupelosia paganzoensis – type locality for species
• †Tvaerenella
  • †Tvaerenella sp.
• †Ucumaris – type locality for genus
  • †Ucumaris conradoi – type locality for species
• †Ucumaropsis – type locality for genus
• †Ucumaropsis
  • †Ucumaropsis lermaensis – type locality for species
  • †Ucumaropsis lermaensis
• †Ugartecladus
  • †Ugartecladus sp. 1informal
• †Ulrichodina
  • †Ulrichodina sp.
• †Undulograptus
  • †Undulograptus sp.
• †Uromystrum
  • †Uromystrum sp.
• †Utahconus – or unidentified related form
• †Utahconus
  • †Utahconus longipinnatus – or unidentified related form
  • †Utahconus longipinnatus
• †Vacunella – tentative report
• †Vacunella
  • †Vacunella camachoi – type locality for species
  • †Vacunella sp.
• †Valcourea
  • †Valcourea sp.
• †Velisoptera – type locality for genus
  • †Velisoptera taschi – type locality for species
• †Velizphlebia – type locality for genus
  • †Velizphlebia cruzi – type locality for species
• †Verrucosisporites
  • †Verrucosisporites minutus
• †Villicumia – type locality for genus
  • †Villicumia canteraensis – type locality for species
• †Vojnowskya
  • †Vojnowskya argentina
• †Waisfeldaspis
  • †Waisfeldaspis sp.
• †Walkomiella
  • †Walkomiella sp. 1informal
• †Westonoceras
  • †Westonoceras sp.
• †Whiteavesia
  • †Whiteavesia sp.
• †Wiedeioceras
  • †Wiedeioceras argentinense
• †Wilkingia
  • †Wilkingia riojana
• †Wurmiella
  • †Wurmiella excavata
• †Xenoptera – type locality for genus
  • †Xenoptera riojaensis – type locality for species
• †Yachalicystis – type locality for genus
  • †Yachalicystis triangularis – type locality for species
• †Yagonia
  • †Yagonia furquei
• †Yunnania
  • †Yunnania pygmaeus
• †Zaphrenthis – tentative report
  • †Zaphrenthis sp.
• †Zaplaops
  • †Zaplaops zaplensis
• †Zondarella – type locality for genus
  • †Zondarella communis – type locality for species
• †Zorotoxotis
  • †Zorotoxotis sp. – type locality for species
• †Zuninaspis
  • †Zuninaspis acuminatus
  • †Zuninaspis sp.
• †Zygograptus
  • †Zygograptus sp.

Mesozoic

• †Abelichnus – type locality for genus
• †Abelichnus
  • †Abelichnus astigarrae – type locality for species
  • †Abelichnus astigarrae
• †Abelisaurus – type locality for genus
  • †Abelisaurus comahuensis – type locality for species
• †Acanthodiscus – report made of unidentified related form or using admittedly obsolete nomenclature
• †Acanthodiscus
  • †Acanthodiscus radiatus – or unidentified comparable form
  • †Acanthodiscus vaceki
  • †Acanthodiscus wichmanni
• †Acanthohoplites
  • †Acanthohoplites sp.
• †Acanthopleuroceras
  • †Acanthopleuroceras stahli – or unidentified comparable form
• †Acesta
  • †Acesta latens
  • †Acesta sp.
• †Achillesaurus – type locality for genus
  • †Achillesaurus manazzonei – type locality for species
• †Acicularia
  • †Acicularia sp.
• †Acteon
  • †Acteon andinus
  • †Acteon australis
• †Actinastrea
  • †Actinastrea piveteaui – or unidentified comparable form
  • †Actinastrea sp.
• †Aculea
  • †Aculea bifida
• †Ademosyne
  • †Ademosyne arcucciae – type locality for species
  • †Ademosyne arcucciae
  • †Ademosyne elongatus – type locality for species
  • †Ademosyne elongatus
  • †Ademosyne hexacostata – type locality for species
  • †Ademosyne hexacostata
  • †Ademosyne llantenesensis – type locality for species
  • †Ademosyne punctuada – type locality for species
  • †Ademosyne punctuada
  • †Ademosyne rosenfeldi – type locality for species
  • †Ademosyne umutu – type locality for species
• †Adeopapposaurus – type locality for genus
• †Adeopapposaurus
  • †Adeopapposaurus mognai – type locality for species
  • †Adeopapposaurus mognai
• †Adiantopteris
  • †Adiantopteris tripinnata – type locality for species
• †Aegocrioceras
  • †Aegocrioceras sp.
• †Aeolosaurus – type locality for genus
• †Aeolosaurus
  • †Aeolosaurus colhuehuapensis – type locality for species
  • †Aeolosaurus rionegrinus – type locality for species
  • †Aeolosaurus sp.
• †Aequipecten
  • †Aequipecten octoplicoides
• †Aequitriradites
  • †Aequitriradites baculatus
  • †Aequitriradites sp.
  • †Aequitriradites spinulosus
  • †Aequitriradites superspinulosus – or unidentified comparable form
  • †Aequitriradites superspinulosus
  • †Aequitriradites verrucosus
• †Aerosteon – type locality for genus
  • †Aerosteon riocoloradensis – type locality for species
• †Aerotitan – type locality for genus
  • †Aerotitan sudamericanus – type locality for species
• †Aetosauroides – type locality for genus
• †Aetosauroides
  • †Aetosauroides scagliai – type locality for species
  • †Aetosauroides scagliai
  • †Aetosauroides sp.
• †Afropollis
  • †Afropollis jardinus – or unidentified related form
  • †Afropollis operculatus
  • †Afropollis sp.informal
  • †Afropollis zonatus
• †Agassiceras
  • †Agassiceras scipionianum – or unidentified comparable form
  • †Agassiceras sp.
• †Agathoxylon
  • †Agathoxylon sp.informal
• †Agerchlamys
  • †Agerchlamys wunschae
• †Aguilerella
  • †Aguilerella neuquensis – type locality for species
• †Agustinia – type locality for genus
  • †Agustinia ligabuei – type locality for species
• †Alamitophis – type locality for genus
• †Alamitophis
  • †Alamitophis argentinus
  • †Alamitophis elongatus
  • †Alamitophis rionegrinus – type locality for species
• †Alamitornis – type locality for genus
  • †Alamitornis minutus – type locality for species
• †Alatacythere – tentative report
  • †Alatacythere rocana
• †Alisporites
  • †Alisporites similis
  • †Alisporites sp.informal
• †Alkastrobus – type locality for genus
  • †Alkastrobus peltatus – type locality for species
• †Almadasuchus – type locality for genus
  • †Almadasuchus figarii – type locality for species
• †Alnashetri – type locality for genus
  • †Alnashetri cerropoliciensis – type locality for species
• †Alsatites – tentative report
  • †Alsatites liasicus – or unidentified comparable form
• †Alsophilidites
  • †Alsophilidites sp.informal
• †Alterbidinium
  • †Alterbidinium acutulum
• †Alvarezsaurus – type locality for genus
  • †Alvarezsaurus calvoi – type locality for species
• †Amargasaurus – type locality for genus
  • †Amargasaurus cazaui – type locality for species
• †Amargasuchus – type locality for genus
  • †Amargasuchus minor – type locality for species
• †Ambercyclus – tentative report
• †Ambercyclus
  • †Ambercyclus espinosus – type locality for species
  • †Ambercyclus isabelensis
• †Ambigostrea
  • †Ambigostrea arcotensis
  • †Ambigostrea clarae
  • †Ambigostrea vulselloides
• †Amblypterus
  • †Amblypterus lujanensis
• †Ameghinichnus – type locality for genus
• †Ameghinichnus
  • †Ameghinichnus manantialensis – type locality for species
  • †Ameghinichnus patagonicus – type locality for species
• †Ammodiscus
  • †Ammodiscus sp.
• †Amphidonte
  • †Amphidonte mendozana
  • †Amphidonte minos
  • †Amphidonte sp.
• †Amygdalodon – type locality for genus
  • †Amygdalodon patagonicus – type locality for species
• †Anabisetia – type locality for genus
• †Anabisetia
  • †Anabisetia saldiviai – type locality for species
  • †Anabisetia saldiviai
• †Anablatta – type locality for genus
  • †Anablatta compacta – type locality for species
• †Anacanthotriletes
  • †Anacanthotriletes sp. 1informal
• †Anacolosidites
  • †Anacolosidites diffusa
• †Anagaudryceras
  • †Anagaudryceras politissimum – or unidentified comparable form
• †Anatoia
  • †Anatoia debilis – type locality for species
  • †Anatoia semiovata – type locality for species
• †Ancanamunia
  • †Ancanamunia mollensis – type locality for species
• †Anchisauripus
  • †Anchisauripus australis – type locality for species
• †Andalusiella
  • †Andalusiella sp.
• †Andenipora
  • †Andenipora sp.
• †Andesaurus – type locality for genus
  • †Andesaurus delgadoi – type locality for species
• †Andescynodon – type locality for genus
  • †Andescynodon mendozensis – type locality for species
• †Andesites
  • †Andesites curvatus
• †Andiceras
  • †Andiceras fallax
• †Andicoeloceras
  • †Andicoeloceras sp. Ainformal
• †Andidiscus
  • †Andidiscus behrendseni – type locality for species
  • †Andidiscus behrendseni – or unidentified comparable form
  • †Andidiscus behrendseni
  • †Andidiscus carinatus – type locality for species
  • †Andidiscus carinatus – or unidentified comparable form
  • †Andidiscus carinatus
  • †Andidiscus multiformis – type locality for species
  • †Andidiscus multiformis
  • †Andidiscus piutrinensis – type locality for species
  • †Andidiscus piutrinensis
  • †Andidiscus prorsiflexus – type locality for species
  • †Andidiscus prorsiflexus
  • †Andidiscus volkheimeri – type locality for species
  • †Andidiscus volkheimeri
• †Anditrigonia
  • †Anditrigonia eximia
  • †Anditrigonia lamberti
• †Angiosperm
  • †Angiosperm tetrade
• †Angulaticeras
  • †Angulaticeras marmoreum – or unidentified comparable form
• †Aniksosaurus – type locality for genus
  • †Aniksosaurus darwini – type locality for species
• †Anomia
  • †Anomia solitaria
  • †Anomia sp.
• †Antarctosaurus – type locality for genus
• †Antarctosaurus
  • †Antarctosaurus giganteus – type locality for species
  • †Antarctosaurus wichmannianus – type locality for species
• †Antevsia
  • †Antevsia sp. 1informal
• †Anthonya
  • †Anthonya jarai – type locality for species
  • †Anthonya jarai
• †Antulsporites
  • †Antulsporites baculatus
  • †Antulsporites sp.informal
• †Anulifera
  • †Anulifera chubutensis – type locality for species
• †Aonikenkissus – type locality for genus
  • †Aonikenkissus zamunerae – type locality for species
• †Aoniraptor – type locality for genus
  • †Aoniraptor libertatem – type locality for species
• †Aphrodina
  • †Aphrodina australis
  • †Aphrodina quintucoensis
  • †Aphrodina sp.
  • †Aphrodina thomsoni – or unidentified comparable form
  • †Aphrodina wilckensi
• †Apiculatisporites
  • †Apiculatisporites sp.
• †Apoderoceras – tentative report
  • †Apoderoceras sp.
• †Appendicisporites
  • †Appendicisporites giganticus – or unidentified comparable form
  • †Appendicisporites potomacensis – or unidentified comparable form
  • †Appendicisporites potomacensis
  • †Appendicisporites pschekhaensis – or unidentified comparable form
  • †Appendicisporites sp. 1informal
  • †Appendicisporites sp. 2informal
  • †Appendicisporites spp.informal
  • †Appendicisporites spp. 1informal
  • †Appendicisporites spp. 2informal
  • †Appendicisporites spp. 3informal
  • †Appendicisporites spp. 4informal
  • †Appendicisporites spp. 5informal
  • †Appendicisporites spp. 6informal
  • †Appendicisporites spp. 7informal
  • †Appendicisporites spp. 8informal
  • †Appendicisporites tricornitatus
  • †Appendicisporites unicus – or unidentified comparable form
• †Apteodinium
  • †Apteodinium granulatum
  • †Apteodinium sp.
• †Aquatilavipes – or unidentified comparable form
  • †Aquatilavipes sp.
• †Araliaephyllum
  • †Araliaephyllum cachetamanense – type locality for species
• †Araripesuchus
  • †Araripesuchus buitreraensis – type locality for species
  • †Araripesuchus patagonicus – type locality for species
  • †Araripesuchus sp.
• †Aratrisporites
  • †Aratrisporites sp.informal
• †Araucanastrea – type locality for genus
• †Araucanastrea
  • †Araucanastrea majuscula – type locality for species
  • †Araucanastrea minuscula – type locality for species
• †Araucanites
  • †Araucanites prereyesi
  • †Araucanites reyesi – or unidentified related form
  • †Araucanites reyesi – or unidentified comparable form
  • †Araucanites reyesi
  • †Araucanites sp.
  • †Araucanites stipanicici
• †Araucaria
  • †Araucaria grandifolia
  • †Araucaria mirabilis
  • †Araucaria sp. 1informal
• †Araucariacites
  • †Araucariacites australis
  • †Araucariacites pergranulatus
• †Araucarioxylon
  • †Araucarioxylon sp. 1informal
• †Araucarites
  • †Araucarites sp. 1informal
  • †Araucarites sp. 2informal
• †Arcellites
  • †Arcellites disciformis
  • †Arcellites humilis – type locality for species
  • †Arcellites humilis
  • †Arcellites pentagonalis – type locality for species
  • †Arcellites reticulatus – or unidentified comparable form
  • †Arcellites santacrucensis – type locality for species
  • †Arcellites santacrucensis
  • †Arcellites sp. Ainformal
• †Archaeocenosphaera
  • †Archaeocenosphaera ruesti – or unidentified comparable form
• †Archamphiroa
  • †Archamphiroa jurassica
• †Archangelskya
  • †Archangelskya sp. 1informal
• †Arecipites
  • †Arecipites minutiscabratus
  • †Arecipites sp.informal
  • †Arecipites sp.
• †Arenicolites
  • †Arenicolites sp.
• †Argenticyprina – type locality for genus
• †Argenticyprina
  • †Argenticyprina mulensis – type locality for species
  • †Argenticyprina mulensis
• †Argentinoblatta – type locality for genus
• †Argentinoblatta
  • †Argentinoblatta herbsti – type locality for species
  • †Argentinoblatta sp.
• †Argentinoblattula – type locality for genus
• †Argentinoblattula
  • †Argentinoblattula revelata – type locality for species
  • †Argentinoblattula revelata – tentative report
• †Argentinocicada – type locality for genus
• †Argentinocicada
  • †Argentinocicada magna – type locality for species
  • †Argentinocicada minima – type locality for species
• †Argentinocupes – type locality for genus
• †Argentinocupes
  • †Argentinocupes abdalai – type locality for species
  • †Argentinocupes pulcher – type locality for species
  • †Argentinocupes pulcher
  • †Argentinocupes sara – type locality for species
• †Argentinoglosselytrina – type locality for genus
  • †Argentinoglosselytrina pulchella – type locality for species
• †Argentinopanorpa – type locality for genus
  • †Argentinopanorpa miguezi – type locality for species
• †Argentinoperlidium – type locality for genus
  • †Argentinoperlidium rogersi – type locality for species
• †Argentinopetala – type locality for genus
  • †Argentinopetala archangelskyi – type locality for species
• †Argentinopheloscyta – type locality for genus
  • †Argentinopheloscyta forsterae – type locality for species
• †Argentinosaurus – type locality for genus
  • †Argentinosaurus huinculensis – type locality for species
• †Argentinoscytina – type locality for genus
  • †Argentinoscytina clara – type locality for species
• †Argentinosuchus – type locality for genus
  • †Argentinosuchus bonapartei – type locality for species
• †Argentinosyne
  • †Argentinosyne bonapartei – type locality for species
  • †Argentinosyne duraznoensis – type locality for species
  • †Argentinosyne frenguellii – type locality for species
  • †Argentinosyne frenguellii
  • †Argentinosyne gonaldiae – type locality for species
  • †Argentinosyne gonaldiae
  • †Argentinosyne gualoensis – type locality for species
  • †Argentinosyne ischichucaensis – type locality for species
  • †Argentinosyne ischichucaensis
  • †Argentinosyne losrastrosensis – type locality for species
  • †Argentinosyne losrastrosensis
  • †Argentinosyne rugosa – type locality for species
  • †Argentinosyne rugosa
• †Argentoconodon – type locality for genus
  • †Argentoconodon fariasorum – type locality for species
• †Argentodites – type locality for genus
  • †Argentodites coloniensis – type locality for species
• †Argyrosaurus – type locality for genus
  • †Argyrosaurus superbus – type locality for species
• †Aristonectes – type locality for genus
• †Aristonectes
  • †Aristonectes parvidens – type locality for species
  • †Aristonectes parvidens – or unidentified comparable form
• †Arnioceras
  • †Arnioceras oppeli – or unidentified comparable form
  • †Arnioceras sp.
• †Arriagadoolithus – type locality for genus
  • †Arriagadoolithus patagoniensis – type locality for species
• †Arthropterygius
  • †Arthropterygius sp.
• †Arthrotaxites
  • †Arthrotaxites ungeri
• †Asfaltomylos – type locality for genus
  • †Asfaltomylos patagonicus – type locality for species
• †Aspidoceras
  • †Aspidoceras haynoldi – or unidentified related form
  • †Aspidoceras rafaeli
  • †Aspidoceras sp.
• †Asplenites
  • †Asplenites lanceolatus
• †Asplenium
  • †Asplenium dicksonianum
• †Astarte – tentative report
• †Astarte
  • †Astarte elongata
  • †Astarte sp.
• †Asterisporites
  • †Asterisporites chlonovae
• †Asteropollis
  • †Asteropollis asteroides
  • †Asteropollis sp.informal
  • †Asteropollis transitorius
• †Asterotheca
  • †Asterotheca sp. 1informal
• †Astraraea
  • †Astraraea fungiformis – or unidentified comparable form
• †Athrotaxis
  • †Athrotaxis ungeri
• †Athrotaxites
  • †Athrotaxites sp. 1informal
• †Atractosteus – or unidentified comparable form
  • †Atractosteus sp.
• †Atreta
  • †Atreta intusstriata – or unidentified comparable form
• †Aucasaurus – type locality for genus
  • †Aucasaurus garridoi – type locality for species
• †Aucellina
  • †Aucellina andina
  • †Aucellina euglypha
  • †Aucellina radiatostriata
  • †Aucellina sp.
• †Aulaconphinctes
  • †Aulaconphinctes mangaensis
• †Aulacosphinctes
  • †Aulacosphinctes sp.
• †Aulacosphinctoides
  • †Aulacosphinctoides sp.
• †Aulasconphinctes
  • †Aulasconphinctes proximus
• †Auriculozonospora
  • †Auriculozonospora spongiosa – type locality for species
• †Auritulina
  • †Auritulina sp.informal
• †Auritulinasporites
  • †Auritulinasporites sp.informal
• †Australiceras
  • †Australiceras hallei
  • †Australiceras sp.
• †Australocicada
  • †Australocicada arcucciae – type locality for species
• †Australoneilo
  • †Australoneilo gracilis
• †Australophis – type locality for genus
• †Australophis
  • †Australophis anilioides – type locality for species
  • †Australophis anilioides
• †Australoseris – type locality for genus
• †Australoseris
  • †Australoseris radialis – type locality for species
  • †Australoseris radialis
  • †Australoseris sp.
• †Austroaporrhais
  • †Austroaporrhais gregaria – or unidentified comparable form
• †Austrocardium
  • †Austrocardium acuticostatum
• †Austrocheirus – type locality for genus
  • †Austrocheirus isasii – type locality for species
• †Austrolepidotes
  • †Austrolepidotes cuyanus
• †Austroraptor – type locality for genus
• †Austroraptor
  • †Austroraptor cabazai – type locality for species
  • †Austroraptor cabazai
• †Austrotriconodon – type locality for genus
• †Austrotriconodon
  • †Austrotriconodon mckennai – type locality for species
  • †Austrotriconodon sepulvedai – type locality for species
• †Austrotrigonia – or unidentified comparable form
• †Austrotrigonia
  • †Austrotrigonia pampeana
  • †Austrotrigonia sobrali
• †Avitabatrachus – type locality for genus
  • †Avitabatrachus uliana – type locality for species
• †Azolla
  • †Azolla cretacea
  • †Azolla rhizosperma
  • †Azolla sp.
• †Azollopsis
  • †Azollopsis polyancyra
  • †Azollopsis tormentosa
• †Babuskaya – type locality for genus
  • †Babuskaya elaterata – type locality for species
• †Baculatisporites
  • †Baculatisporites comaumensis
  • †Baculatisporites kachaikensis – type locality for species
  • †Baculatisporites kachaikensis
  • †Baculatisporites sp.informal
  • †Baculatisporites sp.
• †Baculites
  • †Baculites kirki – or unidentified comparable form
  • †Baculites sp.
• †Bacutriletes
  • †Bacutriletes guttula
  • †Bacutriletes sp. Ainformal
  • †Bacutriletes triangulatus – type locality for species
  • †Bacutriletes triangulatus
• †Badouxia
  • †Badouxia canadensis
• †Bagotum
  • †Bagotum modestum
• †Baiera
  • †Baiera australis – or unidentified comparable form
  • †Baiera sp. 1informal
• †Bakevellia
  • †Bakevellia pintadae – type locality for species
  • †Bakevellia pintadae
  • †Bakevellia sp.
• †Balmeiopsis
  • †Balmeiopsis limbatus
• †Balmeisporites
  • †Balmeisporites holodictyus
• †Baluchicardia
  • †Baluchicardia sp.
• †Barberenia – type locality for genus
• †Barberenia
  • †Barberenia allenensis – type locality for species
  • †Barberenia araujoae – type locality for species
• †Barcinosuchus – type locality for genus
  • †Barcinosuchus gradilis – type locality for species
• †Barrosasaurus – type locality for genus
  • †Barrosasaurus casamiquelai – type locality for species
• †Barrosopus – type locality for genus
  • †Barrosopus slobodai – type locality for species
• †Batiacasphaera
  • †Batiacasphaera kekerengensis – or unidentified comparable form
• †Bayomesasuchus – type locality for genus
  • †Bayomesasuchus hernandezi – type locality for species
• †Beaupreaidites
  • †Beaupreaidites elegansiformis
  • †Beaupreaidites sp.
  • †Beaupreaidites sp. 1informal
• †Belemnopsis
  • †Belemnopsis gladiatoris – or unidentified comparable form
  • †Belemnopsis madagascariensis – or unidentified comparable form
  • †Belemnopsis patagoniensis
  • †Belemnopsis sp.
• †Berenicea – tentative report
  • †Berenicea sp.
• †Berriasella
  • †Berriasella calistoides
  • †Berriasella espinulosa
  • †Berriasella mendozana
  • †Berriasella sp.
• †Berriasiella
  • †Berriasiella sp.
• †Besairieceras
  • †Besairieceras pseudoregale
• †Beudanticeras
  • †Beudanticeras laevigatum – or unidentified comparable form
  • †Beudanticeras revoili
• †Bicentenaria – type locality for genus
  • †Bicentenaria argentina – type locality for species
• †Bicorbula
  • †Bicorbula sp.
• †Bignonites
  • †Bignonites chalianus
• †Biretisporites – tentative report
• †Biretisporites
  • †Biretisporites crassilabratus – or unidentified comparable form
  • †Biretisporites potoniaei – or unidentified comparable form
  • †Biretisporites potoniei – or unidentified comparable form
  • †Biretisporites sp.informal
  • †Biretisporites sp.
  • †Biretisporites sp. Ainformal
  • †Biretisporites sp. Binformal
  • †Biretisporites sp. Cinformal
• †Bisulcocypris
  • †Bisulcocypris sp.
• †Blattulopsis – type locality for genus
  • †Blattulopsis popovi – type locality for species
• †Bolilaspirifer
  • †Bolilaspirifer riccardii – type locality for species
• †Bombacacidites
  • †Bombacacidites sp. 1informal
• †Bonaparteichnium – type locality for genus
  • †Bonaparteichnium tali – type locality for species
• †Bonapartemys – type locality for genus
  • †Bonapartemys bajobarrealis – type locality for species
• †Bonapartenykus – type locality for genus
• †Bonapartenykus
  • †Bonapartenykus ultimus – type locality for species
  • †Bonapartenykus ultimus
• †Bonarelliella – type locality for genus
• †Bonarelliella
  • †Bonarelliella ameghinorum
  • †Bonarelliella brackebuschii – type locality for species
  • †Bonarelliella jueya – type locality for species
  • †Bonarelliella multicosta
• †Bonatitan – type locality for genus
  • †Bonatitan reigi – type locality for species
• †Bondesius – type locality for genus
  • †Bondesius ferox – type locality for species
• †Bonitasaura – type locality for genus
• †Bonitasaura
  • †Bonitasaura salgadoi – type locality for species
  • †Bonitasaura salgadoi
• †Bositra
  • †Bositra ornati
  • †Bositra sp.
• †Botryococcus
  • †Botryococcus sp.informal
  • †Botryococcus sp.
• †Brachidontes
  • †Brachidontes sp.
• †Brachiphyllum
  • †Brachiphyllum sp.
• †Brachycerithium
  • †Brachycerithium evolutum
  • †Brachycerithium ferugloi
  • †Brachycerithium minus
• †Brachychirotherium – or unidentified comparable form
  • †Brachychirotherium sp.
• †Brachyoxylon
  • †Brachyoxylon sp.informal
• †Brachyphyllum
  • †Brachyphyllum kachaikensis – type locality for species
  • †Brachyphyllum menendezi
  • †Brachyphyllum sp.
  • †Brachyphyllum sp. 1informal
  • †Brachyphyllum sp. 2informal
• †Brachytrachelopan – type locality for genus
  • †Brachytrachelopan mesai – type locality for species
• †Brandonia – type locality for genus
• †Brandonia – or unidentified comparable form
  • †Brandonia intermedia – type locality for species
  • †Brandonia sp.
• †Brenneripollis
  • †Brenneripollis sp.informal
  • †Brenneripollis sp. 1informal
  • †Brenneripollis sp. 2informal
• †Bressanichnus – type locality for genus
• †Bressanichnus
  • †Bressanichnus patagonicus – type locality for species
  • †Bressanichnus patagonicus
• †Brodieia
  • †Brodieia alticarinata – or unidentified comparable form
• †Brunoa
  • †Brunoa santarrosensis
• †Buitreraptor – type locality for genus
  • †Buitreraptor gonzalezorum – type locality for species
• †Cabochonicus
  • †Cabochonicus carbunculus – or unidentified comparable form
  • †Cabochonicus carbunculus
• †Cacheutacicada – type locality for genus
  • †Cacheutacicada kurtzae – type locality for species
• †Calibarichnus – type locality for genus
  • †Calibarichnus ayestarani – type locality for species
• †Caligodinium
  • †Caligodinium sp.
• †Callaiosphaeridium
  • †Callaiosphaeridium asymmetricum – or unidentified comparable form
• †Callialasporites
  • †Callialasporites dampieri
  • †Callialasporites sp.informal
  • †Callialasporites spp.informal
  • †Callialasporites trilobatus
• †Callianassa
  • †Callianassa burckhardi
  • †Callianassa burckhardti
  • †Callianassa peruviana – or unidentified related form
  • †Callianassa sp.
• †Calliotropis – tentative report
• †Calliotropis
  • †Calliotropis keideli – or unidentified comparable form
  • †Calliotropis keideli
  • †Calliotropis sp.
• †Calliphylloceras
  • †Calliphylloceras bicicolae – or unidentified comparable form
  • †Calliphylloceras disputabile
• †Caloceras
  • †Caloceras peruvianum – or unidentified comparable form
• †Camarozonosporites
  • †Camarozonosporites ohaiensis
  • †Camarozonosporites spp.
• †Caminchaia
  • †Caminchaia draghii – type locality for species
• †Camptonectes – tentative report
• †Camptonectes
  • †Camptonectes auritus – tentative report
  • †Camptonectes auritus
  • †Camptonectes mahuidaensis
  • †Camptonectes sp.
  • †Camptonectes subulatus – or unidentified comparable form
  • †Camptonectes tutorae – or unidentified related form
  • †Camptonectes tutorae
• †Campylodoniscus – type locality for genus
  • †Campylodoniscus sp. – type locality for species
• †Canavaria
  • †Canavaria finitima – or unidentified comparable form
  • †Canavaria naxensis – or unidentified comparable form
  • †Canavaria pulcherrima – or unidentified comparable form
• †Candonopsis
  • †Candonopsis sp.
• †Canningia
  • †Canningia pistica – or unidentified comparable form
• †Canteronecta – type locality for genus
  • †Canteronecta irajae – type locality for species
• †Canutus
  • †Canutus rennellensis
• †Capsispora – type locality for genus
  • †Capsispora vulcanica – type locality for species
• †Cardinia
  • †Cardinia andium
  • †Cardinia desestriata
• †Cardiosyne – type locality for genus
• †Cardiosyne
  • †Cardiosyne elegans – type locality for species
  • †Cardiosyne obesa – type locality for species
  • †Cardiosyne obesa
• †Carmarozonosporites
  • †Carmarozonosporites microalveolatus
• †Carnotaurus – type locality for genus
  • †Carnotaurus sastrei – type locality for species
• †Carpolithes
  • †Carpolithes sp. 1informal
  • †Carpolithes sp. 2informal
• †Carpolithus
  • †Carpolithus sp. 1informal
• †Casamiquelia – type locality for genus
  • †Casamiquelia rionegrina – type locality for species
• †Cassianella
  • †Cassianella peruana – or unidentified comparable form
• †Cathartesaura – type locality for genus
  • †Cathartesaura anaerobica – type locality for species
• †Catutosphinctes
  • †Catutosphinctes guenenakenensis – type locality for species
  • †Catutosphinctes guenenakenensis – or unidentified comparable form
  • †Catutosphinctes guenenakenensis
  • †Catutosphinctes sp.
• †Cayeuxia
  • †Cayeuxia sp.
• †Caypullisaurus
  • †Caypullisaurus bonapartei
• †Cenechoia – type locality for genus
• †Cenechoia
  • †Cenechoia paramillensis – type locality for species
  • †Cenechoia sulcata – type locality for species
• †Ceratodus – or unidentified comparable form
• †Ceratodus
  • †Ceratodus iheringi
  • †Ceratodus sp.
• †Ceratosporites
  • †Ceratosporites equalis
  • †Ceratosporites setosus
  • †Ceratosporites sp.informal
  • †Ceratosporites sp. Ainformal
  • †Ceratosporites sp. Binformal
• †Cerbia
  • †Cerbia tabulata
• †Cerithium
  • †Cerithium heeri – or unidentified comparable form
• †Cerodinium
  • †Cerodinium diebelii
  • †Cerodinium sp.
• †Chacaicosaurus – type locality for genus
  • †Chacaicosaurus cayi – type locality for species
• †Chacantuceras
  • †Chacantuceras ornatum
• †Chaliminia – type locality for genus
• †Chaliminia
  • †Chaliminia musteloides – type locality for species
  • †Chaliminia musteloides
• †Challaia – type locality for genus
• †Challaia
  • †Challaia cacheutensis
  • †Challaia magna – type locality for species
  • †Challaia multidentata – type locality for species
  • †Challaia striata
• †Chanaresuchus – type locality for genus
• †Chanaresuchus
  • †Chanaresuchus bonapartei – type locality for species
  • †Chanaresuchus bonapartei
• †Chartronella
  • †Chartronella gradata
• †Chiniquodon – type locality for genus
• †Chiniquodon
  • †Chiniquodon sanjuanensis – type locality for species
  • †Chiniquodon sp.
  • †Chiniquodon theotonicus – type locality for species
  • †Chiniquodon theotonicus
• †Chirotherium
  • †Chirotherium bairdii
  • †Chirotherium sp.
• †Chlamys – tentative report
• †Chlamys – report made of unidentified related form or using admittedly obsolete nomenclature
• †Chlamys
  • †Chlamys discors – or unidentified comparable form
  • †Chlamys robinaldina
  • †Chlamys textoria
• †Choffatia
  • †Choffatia aequalis – or unidentified related form
  • †Choffatia gottschei
  • †Choffatia jupiter
  • †Choffatia neumayri – or unidentified related form
  • †Choffatia poculum – or unidentified comparable form
  • †Choffatia schilleri – type locality for species
  • †Choffatia sp.
  • †Choffatia subbackeriae
  • †Choffatia suborion
• †Choicensisphinctes
  • †Choicensisphinctes australis
  • †Choicensisphinctes erinoides – or unidentified comparable form
  • †Choicensisphinctes erinoides
  • †Choicensisphinctes platyconus – type locality for species
  • †Choicensisphinctes platyconus – or unidentified comparable form
  • †Choicensisphinctes platyconus
  • †Choicensisphinctes windhauseni
• †Chomotriletes
  • †Chomotriletes minor
• †Chondrites
  • †Chondrites sp.
• †Choristoceras
  • †Choristoceras marshi – or unidentified comparable form
  • †Choristoceras sp.
• †Chromogisaurus – type locality for genus
  • †Chromogisaurus novasi – type locality for species
• †Chubutemys
  • †Chubutemys copelloi
• †Chubutisaurus – type locality for genus
  • †Chubutisaurus insignis – type locality for species
• †Cibotiidites
  • †Cibotiidites sp.informal
• †Cibotiumspora
  • †Cibotiumspora jurienensis
• †Cicatricocisporites
  • †Cicatricocisporites ticoensis – or unidentified comparable form
• †Cicatricosisporites
  • †Cicatricosisporites annulatus
  • †Cicatricosisporites australiensis
  • †Cicatricosisporites baqueroensis
  • †Cicatricosisporites cuneiformis
  • †Cicatricosisporites ethmos – or unidentified comparable form
  • †Cicatricosisporites giganteus
  • †Cicatricosisporites hallei – or unidentified comparable form
  • †Cicatricosisporites hughesi
  • †Cicatricosisporites hughesii
  • †Cicatricosisporites minutaestriatus – or unidentified comparable form
  • †Cicatricosisporites pramparoana
  • †Cicatricosisporites pseudotripartitus
  • †Cicatricosisporites sp.informal
  • †Cicatricosisporites sp.
  • †Cicatricosisporites Sp. 1informal
  • †Cicatricosisporites sp. 2informal
  • †Cicatricosisporites spp. 1informal
  • †Cicatricosisporites spp. 2informal
  • †Cicatricosisporites spp. Cinformal
  • †Cicatricosisporites ticoensis
  • †Cicatricosisporites venustus – or unidentified comparable form
• †Cieneguiticeras
  • †Cieneguiticeras perlaevis
• †Cingulatisporites
  • †Cingulatisporites sp.informal
• †Cingutriletes
  • †Cingutriletes sp.informal
• †Cinnamomun
  • †Cinnamomun heeri
• †Cinulia
  • †Cinulia pauper
• †Circulina
  • †Circulina sp.informal
• †Circulodinium
  • †Circulodinium brevispinosum
  • †Circulodinium distinctum
• †Cissites
  • †Cissites parvifolius
• †Cladophlebis
  • †Cladophlebis australis
  • †Cladophlebis browniana – or unidentified comparable form
  • †Cladophlebis kurtzi – or unidentified comparable form
  • †Cladophlebis patagonica
  • †Cladophlebis sp. 1informal
  • †Cladophlebis sp. 2informal
  • †Cladophlebis sp. 3informal
  • †Cladophlebis sp. 4informal
• †Clasmodosaurus – type locality for genus
  • †Clasmodosaurus spatula – type locality for species
• †Classopollis
  • †Classopollis classoides – or unidentified comparable form
  • †Classopollis classoides
  • †Classopollis intrareticulatus
  • †Classopollis martinotti
  • †Classopollis simplex
  • †Classopollis sp.informal
  • †Classopollis sp.
  • †Classopollis spp.informal
• †Clathropteris
  • †Clathropteris sp.
  • †Clathropteris sp. 1informal
• †Clavamonocolpites
  • †Clavamonocolpites sp. 1informal
• †Clavatipollenites
  • †Clavatipollenites hughesii
  • †Clavatipollenites rotundus – or unidentified comparable form
  • †Clavatipollenites sp.informal
  • †Clavatipollenites sp.
  • †Clavatipollenites spp.informal
• †Clavatricolpites
  • †Clavatricolpites sp. 1informal
• †Clavifera
  • †Clavifera sp.informal
  • †Clavifera sp. Ainformal
  • †Clavifera triplex – or unidentified comparable form
  • †Clavifera triplex
• †Cleistosphaeridium
  • †Cleistosphaeridium sp.
• †Cleoniceras
  • †Cleoniceras santacrucense – or unidentified comparable form
• †Coelodus
  • †Coelodus toncoensis
• †Colchidites
  • †Colchidites vulanensis
• †Collignonastraea – tentative report
  • †Collignonastraea sp.
• †Collotia
  • †Collotia falloti – or unidentified comparable form
• †Coloniatherium – type locality for genus
• †Coloniatherium
  • †Coloniatherium cilinskii – type locality for species
  • †Coloniatherium cilinskii
• †Coloradisaurus – type locality for genus
• †Coloradisaurus
  • †Coloradisaurus brevis – type locality for species
  • †Coloradisaurus brevis
• †Colpomphalus – tentative report
• †Colpomphalus
  • †Colpomphalus musacchioi
  • †Colpomphalus sp.
• †Columastrea
  • †Columastrea antiqua
• †Comahuesaurus – type locality for genus
  • †Comahuesaurus windhauseni – type locality for species
• †Comahuesuchus – type locality for genus
• †Comahuesuchus – or unidentified related form
• †Comahuesuchus
  • †Comahuesuchus brachybuccalis – type locality for species
  • †Comahuesuchus brachybuccalis
  • †Comahuesuchus sp.
• †Complexastraeopsis
  • †Complexastraeopsis caracolensis
  • †Complexastraeopsis sp.
• †Conbaculatisporites
  • †Conbaculatisporites sp.
• †Concavisporites
  • †Concavisporites laticrassus – or unidentified comparable form
  • †Concavisporites semiangulatus – or unidentified comparable form
  • †Concavisporites sp. Ainformal
• †Concavissimisporites
  • †Concavissimisporites apiverrucatus
  • †Concavissimisporites penolaensis
  • †Concavissimisporites punctatus
  • †Concavissimisporites sp. Ainformal
  • †Concavissimisporites verrucosus
• †Concavites – tentative report
  • †Concavites sp.
• †Condorblatta – type locality for genus
• †Condorblatta
  • †Condorblatta lutzae – type locality for species
  • †Condorblatta lutzae
• †Condorchelys – type locality for genus
  • †Condorchelys antiqua – type locality for species
• †Condorodon – type locality for genus
  • †Condorodon spanios – type locality for species
• †Condorraptor – type locality for genus
  • †Condorraptor currumili – type locality for species
• †Confossia
  • †Confossia vulgaris
• †Coniopteris
  • †Coniopteris sp. 1informal
• †Contignisporites
  • †Contignisporites burgerii
  • †Contignisporites cooksoniae
  • †Contignisporites cooksonii
  • †Contignisporites glebulentus
• †Converrucosisporites
  • †Converrucosisporites sp. Ainformal
  • †Converrucosisporites sp. Binformal
• †Convexastrea – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Convexastrea weaveri
• †Convolutispora
  • †Convolutispora sp. 1informal
  • †Convolutispora sp. 2informal
• †Coptospora
  • †Coptospora foveolata
  • †Coptospora spp. 1informal
  • †Coptospora spp. 2informal
• †Copytus
  • †Copytus sp.
• †Corbicula
  • †Corbicula pehuenchensis
  • †Corbicula sp.
• †Corongoceras
  • †Corongoceras alternans – or unidentified comparable form
  • †Corongoceras sp.
• †Coroniceras – tentative report
• †Coroniceras
  • †Coroniceras alcinoe – or unidentified comparable form
  • †Coroniceras charlesi – or unidentified comparable form
  • †Coroniceras paolinae – or unidentified comparable form
  • †Coroniceras sp.
• †Couperisporites
  • †Couperisporites lilianae
  • †Couperisporites sp. Ainformal
• †Crassitricolporites
  • †Crassitricolporites sp.informal
• †Craticularia
  • †Craticularia parallela
• †Crescentiella – tentative report
  • †Crescentiella sp.
• †Cretacacaeiporites
  • †Cretacacaeiporites polygonalis
• †Cretacaeiporites
  • †Cretacaeiporites scabratus – or unidentified comparable form
  • †Cretacaeiporites scabratus
• †Cribroperidinium
  • †Cribroperidinium edwarsii
  • †Cribroperidinium orthoceras
  • †Cribroperidinium sp.
  • †Cribroperidinium spp.
• †Cribrospongia
  • †Cribrospongia cucullata
  • †Cribrospongia reticulata
  • †Cribrospongia sp.
• †Cricosaurus
  • †Cricosaurus araucanensis – type locality for species
  • †Cricosaurus araucanensis
  • †Cricosaurus lithographicus – type locality for species
  • †Cricosaurus sp.
• †Crioceratites
  • †Crioceratites sp.
• †Cromptodon – type locality for genus
  • †Cromptodon mamiferoides – type locality for species
• †Cronopio – type locality for genus
  • †Cronopio dentiacutus – type locality for species
• †Crucella
  • †Crucella mijo
• †Crybelosporites
  • †Crybelosporites australis – type locality for species
  • †Crybelosporites berberioides – or unidentified comparable form
  • †Crybelosporites punctatus – or unidentified comparable form
  • †Crybelosporites sp. Ainformal
  • †Crybelosporites striatus
  • †Crybelosporites stylosus
• †Cryptaulax
  • †Cryptaulax damboreneae – type locality for species
  • †Cryptaulax damboreneae – or unidentified comparable form
  • †Cryptaulax damboreneae
  • †Cryptaulax redelii – type locality for species
• †Cryptoclidus – or unidentified comparable form
  • †Cryptoclidus sp.
• †Cryptocrioceras
  • †Cryptocrioceras yrigoyeni
• †Cryptorhytis – or unidentified comparable form
• †Cryptorhytis
  • †Cryptorhytis philippiana
  • †Cryptorhytis sp. Ainformal
• †Ctenis
  • †Ctenis sp. 1informal
• †Ctenocheles
  • †Ctenocheles sp.
• †Ctenostreon
  • †Ctenostreon sp.
• †Cubasphinctes
  • †Cubasphinctes cubanensis
  • †Cubasphinctes durangensis – or unidentified related form
  • †Cubasphinctes durangensis
  • †Cubasphinctes durangesis – or unidentified related form
  • †Cubasphinctes herreroduclouxi – or unidentified comparable form
  • †Cubasphinctes herreroduclouxi
• †Cubaspidoceras
  • †Cubaspidoceras carribeanum – or unidentified related form
• †Cucullaea – tentative report
• †Cucullaea
  • †Cucullaea antarctica – or unidentified comparable form
  • †Cucullaea antarctica
  • †Cucullaea argentina
  • †Cucullaea gabrielis
  • †Cucullaea jaworskii – or unidentified comparable form
  • †Cucullaea jaworskii
  • †Cucullaea rocana
  • †Cucullaea rothi – or unidentified comparable form
  • †Cucullaea rothi
  • †Cucullaea sp.
• †Cupanieidites – tentative report
  • †Cupanieidites sp.informal
• †Cuyosuchus – type locality for genus
  • †Cuyosuchus huenei – type locality for species
• †Cyatheacidites
  • †Cyatheacidites annulatus
  • †Cyatheacidites sp.informal
  • †Cyatheacidites sp.
  • †Cyatheacidites tectifera
• †Cyathidites
  • †Cyathidites australis
  • †Cyathidites minor – or unidentified comparable form
  • †Cyathidites minor
  • †Cyathidites patagonicus
  • †Cyathidites punctatus – or unidentified comparable form
  • †Cyathidites sp.
  • †Cyathidites sp. Binformal
• †Cyathophylliopsis
  • †Cyathophylliopsis delabechei
• †Cycadites
  • †Cycadites sp. 1informal
• †Cycadocarpidium
  • †Cycadocarpidium sp. 1informal
  • †Cycadocarpidium sp. 2informal
  • †Cycadocarpidium sp. 3informal
• †Cycadolepis
  • †Cycadolepis coriacea
  • †Cycadolepis involuta
  • †Cycadolepis sp.
• †Cycadopites
  • †Cycadopites follicularis
  • †Cycadopites nitidus
  • †Cycadopites punctatus
  • †Cycadopites sp.informal
  • †Cycadopites sp.
  • †Cycadopites spp.informal
  • †Cycadopites spp.
• †Cyclusphaera
  • †Cyclusphaera euribei
  • †Cyclusphaera psilata
  • †Cyclusphaera radiata – or unidentified comparable form
  • †Cyclusphaera radiata
  • †Cyclusphaera sp.informal
• †Cymatoceras
  • †Cymatoceras patagonicum – type locality for species
  • †Cymatoceras perstriatum
  • †Cymatoceras sp.
• †Cynodontosuchus – type locality for genus
  • †Cynodontosuchus rothi – type locality for species
• †Cynognathus
  • †Cynognathus crateronotus – type locality for species
• †Cytherella
  • †Cytherella araucana – type locality for species
• †Cytherura – tentative report
• †Cytherura
  • †Cytherura argentinensis – type locality for species
  • †Cytherura jaguelensis – type locality for species
  • †Cytherura sp.
• †Cyzicus
  • †Cyzicus codoensis – or unidentified related form
  • †Cyzicus sp.
• †Czekanowskia
  • †Czekanowskia sp. 1informal
• †Dakosaurus
  • †Dakosaurus andiniensis – type locality for species
  • †Dakosaurus andiniensis – or unidentified comparable form
  • †Dakosaurus andiniensis
  • †Dakosaurus sp.
• †Darwinula
  • †Darwinula sp.
• †Decliveites
  • †Decliveites crassicostatus
  • †Decliveites sp.
• †Defarrariischnium – type locality for genus
• †Defarrariischnium
  • †Defarrariischnium mapuchensis – type locality for species
  • †Defarrariischnium mapuchensis
• †Delatorrichnus – type locality for genus
  • †Delatorrichnus goyenechei – type locality for species
• †Delphinella
  • †Delphinella sp.
• †Delpuenteblatta – type locality for genus
  • †Delpuenteblatta dangeloi – type locality for species
• †Delpuentesyne – type locality for genus
  • †Delpuentesyne menendezi – type locality for species
• †Deltamya
  • †Deltamya sp.
• †Deltoidospora
  • †Deltoidospora australis
  • †Deltoidospora inconspicua
  • †Deltoidospora minor
  • †Deltoidospora sp.
  • †Deltoidospora sp. Ainformal
  • †Deltoidospora sp. Binformal
  • †Deltoidospora sp. Cinformal
  • †Deltoidospora sp. Dinformal
• †Densoisporites
  • †Densoisporites corrugatus
  • †Densoisporites velatus
• †Desmiophyllum
  • †Desmiophyllum sp. 1informal
• †Dhondtichlamys
  • †Dhondtichlamys bagualensis
• †Diademodon
  • †Diademodon tetragonus
• †Diconodinium
  • †Diconodinium sp.
• †Dicroidiopsis
  • †Dicroidiopsis sp. 1informal
• †Dicroidium
  • †Dicroidium sp. 1informal
  • †Dicroidium sp. 2informal
  • †Dicroidium sp. 3informal
  • †Dicroidium sp. 4informal
  • †Dicroidium sp. 5informal
  • †Dicroidium sp. 6informal
  • †Dicroidium sp. 7informal
• †Dicroloma – tentative report
  • †Dicroloma sp.
• †Dictyophyllidites
  • †Dictyophyllidites mortoni
  • †Dictyophyllidites sp.informal
  • †Dictyophyllidites sp.
• †Dictyophyllum
  • †Dictyophyllum sp. 1informal
  • †Dictyophyllum sp. 2informal
• †Dictyothylakos
  • †Dictyothylakos sp.
• †Dictyotosporites
  • †Dictyotosporites complex
• †Dictyozamites
  • †Dictyozamites sp. 1informal
  • †Dictyozamites sp. 2informal
  • †Dictyozamites sp. 3informal
  • †Dictyozamites sp. 4informal
  • †Dictyozamites sp. 5informal
  • †Dictyozamites sp. 6informal
• †Dicynodontipus – or unidentified comparable form
  • †Dicynodontipus sp.
• †Dimorphosoma
  • †Dimorphosoma weaveri
• †Dingodinium
  • †Dingodinium cerviculum
• †Dinilysia – type locality for genus
• †Dinilysia
  • †Dinilysia patagonica – type locality for species
  • †Dinilysia patagonica
  • †Dinilysia sp.
• †Dinodontosaurus – type locality for genus
• †Dinodontosaurus
  • †Dinodontosaurus pedroanum – type locality for species
  • †Dinodontosaurus pedroanum
  • †Dinodontosaurus platiceps
• †Diplodon
  • †Diplodon bodenbenderi
  • †Diplodon sp.
• †Dipoloceras
  • †Dipoloceras cristatum
  • †Dipoloceras elegans
• †Disparilia
  • †Disparilia sp.
• †Distichomeandra
  • †Distichomeandra austriaca – or unidentified comparable form
• †Djurjuriceras
  • †Djurjuriceras catutosense
  • †Djurjuriceras sp.
• †Dolichochampsa – type locality for genus
• †Dolichochampsa
  • †Dolichochampsa minima – type locality for species
  • †Dolichochampsa minima
• †Dozyia
  • †Dozyia venatorum
• †Dreadnoughtus – type locality for genus
  • †Dreadnoughtus schrani – type locality for species
• †Droltus
  • †Droltus hecatensis
• †Dromomeron
  • †Dromomeron gigas – type locality for species
• †Drusilasaura – type locality for genus
  • †Drusilasaura deseadensis – type locality for species
• †Dryadopollis
  • †Dryadopollis argus – or unidentified comparable form
  • †Dryadopollis sp.informal
• †Dryopterites
  • †Dryopterites problematicus
• †Dubariceras
  • †Dubariceras argentinicum – type locality for species
  • †Dubariceras argentinicum
  • †Dubariceras freboldi
• †Duraznoscarta – type locality for genus
  • †Duraznoscarta ramosa – type locality for species
• †Echentaia
  • †Echentaia obesa – type locality for species
• †Echimonocolpites
  • †Echimonocolpites sp.informal
• †Echinatisporis
  • †Echinatisporis sp.
• †Echinorhinus
  • †Echinorhinus sp.
• †Echinosporis
  • †Echinosporis sp.
• †Ecteninion – type locality for genus
  • †Ecteninion lunensis – type locality for species
• †Eisenackia
  • †Eisenackia circumtabulata
• †Ekrixinatosaurus – type locality for genus
  • †Ekrixinatosaurus novasi – type locality for species
• †Elaltitan – type locality for genus
  • †Elaltitan lilloi – type locality for species
• †Elateroplicites
  • †Elateroplicites africaensis
• †Elatocladus
  • †Elatocladus sp.
  • †Elatocladus sp. 1informal
  • †Elatocladus sp. 2informal
• †Elbretornis – type locality for genus
• †Elbretornis
  • †Elbretornis bonapartei – type locality for species
  • †Elbretornis sp.
• †Emileia
  • †Emileia multiformis
• †Enantiornis – type locality for genus
• †Enantiornis
  • †Enantiornis leali – type locality for species
  • †Enantiornis sp.
• †Enoploclytia
  • †Enoploclytia sp.
• †Entolium
  • †Entolium argentinum – or unidentified comparable form
  • †Entolium disciforme – tentative report
  • †Entolium disciforme
  • †Entolium lunare – or unidentified comparable form
  • †Entolium mahuidaensis
  • †Entolium mapuche – type locality for species
  • †Entolium mapuche – tentative report
  • †Entolium mapuche
  • †Entolium membranaceum
  • †Entolium molestus
  • †Entolium sp.
• †Entylissa
  • †Entylissa sp.
• †Eoabelisaurus – type locality for genus
  • †Eoabelisaurus mefi – type locality for species
• †Eoamaltheus
  • †Eoamaltheus arayaensis – type locality for species
  • †Eoamaltheus arayaensis
  • †Eoamaltheus blancoensis – type locality for species
  • †Eoamaltheus blancoensis
  • †Eoamaltheus intermissus – type locality for species
  • †Eoamaltheus meridianus
  • †Eoamaltheus multicostatus – type locality for species
  • †Eoamaltheus multicostatus
  • †Eoamaltheus ovatoides – type locality for species
  • †Eoamaltheus ovatoides
  • †Eoamaltheus ovatus
  • †Eoamaltheus parameridianus – type locality for species
  • †Eoamaltheus parameridianus
  • †Eoamaltheus paraovatus – type locality for species
  • †Eoamaltheus paraovatus – or unidentified comparable form
  • †Eoamaltheus paraovatus
  • †Eoamaltheus sp.
• †Eodromaeus – type locality for genus
  • †Eodromaeus murphi – type locality for species
• †Eomarshallites
  • †Eomarshallites espinosum
  • †Eomarshallites hibridum
• †Eopecten
  • †Eopecten hartzi – tentative report
  • †Eopecten sp.
  • †Eopecten velatus – or unidentified comparable form
• †Eoraptor – type locality for genus
  • †Eoraptor lunensis – type locality for species
• †Epachthosaurus – type locality for genus
• †Epachthosaurus
  • †Epachthosaurus sciuttoi – type locality for species
  • †Epachthosaurus sciuttoi
  • †Epachthosaurus sp.
• †Ephedra
  • †Ephedra verticillata – type locality for species
• †Ephedripites
  • †Ephedripites caichiguensis
  • †Ephedripites multicostatus
  • †Ephedripites notensis
  • †Ephedripites sp.informal
  • †Ephedripites sp. 1informal
  • †Ephedripites sp. 2informal
• †Epophioceras – tentative report
• †Epophioceras
  • †Epophioceras cognitum – or unidentified comparable form
  • †Epophioceras sp.
• †Equisetites
  • †Equisetites sp.
  • †Equisetites sp. 1informal
• †Equisetosporites
  • †Equisetosporites albertensis – or unidentified comparable form
  • †Equisetosporites cancellatus – or unidentified comparable form
  • †Equisetosporites evidens – or unidentified comparable form
  • †Equisetosporites irregularis
  • †Equisetosporites multicostatus
  • †Equisetosporites ovatus
  • †Equisetosporites sp.informal
  • †Equisetosporites sp.
  • †Equisetosporites sp. 1informal
  • †Equisetosporites sp. 2informal
• †Ericipites
  • †Ericipites microtectanum
  • †Ericipites scabratus
• †Eriphyla – tentative report
• †Eriphyla
  • †Eriphyla argentina
  • †Eriphyla meridiana
  • †Eriphyla sp.
• †Erlansonisporites
  • †Erlansonisporites sparassis
  • †Erlansonisporites verrucatus – type locality for species
  • †Erlansonisporites verrucatus
• †Eryma
  • †Eryma sulcata – or unidentified comparable form
• †Eryphila
  • †Eryphila sp.
• †Eselaevitrigonia
  • †Eselaevitrigonia regina
• †Espora
  • †Espora Tipo Ainformal
  • †Espora Tipo Binformal
• †Estheria
  • †Estheria sp.
• †Etallonasteria
  • †Etallonasteria sp.
• †Etea
  • †Etea carolinensis – or unidentified related form
• †Euagassiceras
  • †Euagassiceras sp.
• †Euaptetoceras
  • †Euaptetoceras amplectens
• †Euaspidoceras
  • †Euaspidoceras ajax – or unidentified comparable form
  • †Euaspidoceras ajax
  • †Euaspidoceras depereti – or unidentified comparable form
  • †Euaspidoceras ovale – or unidentified related form
  • †Euaspidoceras raynaudi – or unidentified related form
  • †Euaspidoceras subbabeanum – or unidentified comparable form
  • †Euaspidoceras tarapacaense
  • †Euaspidoceras veranadaense
• †Eubaculites
  • †Eubaculites sp.
• †Euestheria
  • †Euestheria forbesi
• †Eumorphotis
  • †Eumorphotis asapha
  • †Eumorphotis campbellorum
• †Eunerinea
  • †Eunerinea mendozana
• †Eurycephalites – tentative report
• †Eurycephalites
  • †Eurycephalites extremus – or unidentified related form
  • †Eurycephalites extremus
  • †Eurycephalites gottschei – or unidentified related form
  • †Eurycephalites gottschei
  • †Eurycephalites involutus
  • †Eurycephalites rotundus – or unidentified comparable form
  • †Eurycephalites rotundus
  • †Eurycephalites sp.
  • †Eurycephalites vergarensis
• †Eurynotus
  • †Eurynotus uspallatensis – type locality for species
• †Eurysternum – tentative report
  • †Eurysternum neuquinum
• †Euspira
  • †Euspira pueyrredonensis – or unidentified comparable form
• †Euvirgalithacoceras
  • †Euvirgalithacoceras malarguense
• †Exaeretodon
  • †Exaeretodon sp.
• †Exelissa – tentative report
  • †Exelissa arcuatoconcava – type locality for species
  • †Exelissa arcuatoconcava
• †Exochosphaeridium
  • †Exochosphaeridium bifidum
  • †Exochosphaeridium phragmites
  • †Exochosphaeridium sp.
• †Exogyra
  • †Exogyra caudoni
  • †Exogyra couloni
  • †Exogyra latissimun
  • †Exogyra sp.
• †Falcimytilus – tentative report
  • †Falcimytilus gigantoides
• †Fanninoceras
  • †Fanninoceras fannini
  • †Fanninoceras latum – or unidentified comparable form
  • †Fanninoceras leptodiscus – type locality for species
  • †Fanninoceras sp.
  • †Fanninoceras sp. Ainformal
• †Farcus
  • †Farcus graylockensis
• †Fasolasuchus – type locality for genus
  • †Fasolasuchus tenax – type locality for species
• †Favososporites
  • †Favososporites sp.
  • †Favososporites spinulosus – or unidentified comparable form
• †Favrella
  • †Favrella americana
  • †Favrella wilckensi
• †Feruglioa
  • †Feruglioa sp. 1informal
• †Ferugliotherium – type locality for genus
  • †Ferugliotherium windhauseni – type locality for species
• †Fisciniasporites
  • †Fisciniasporites brevilaesuratus – or unidentified comparable form
  • †Fisciniasporites sp.
• †Fitzroya
  • †Fitzroya tertiaria
• †Flabellaria
  • †Flabellaria sp.
• †Flemingostrea
  • †Flemingostrea rionegrensis
• †Florentinia
  • †Florentinia mantellii
  • †Florentinia sp.
• †Foraminisporis – tentative report
• †Foraminisporis
  • †Foraminisporis asymmetricus
  • †Foraminisporis dailyi
  • †Foraminisporis sp.
  • †Foraminisporis wonthaggiensis – or unidentified comparable form
  • †Foraminisporis wonthaggiensis
• †Forcipites
  • †Forcipites longus
  • †Forcipites sabulosus
  • †Forcipites sp. Ainformal
• †Foveogleicheniidites
  • †Foveogleicheniidites confossus
• †Foveosporites
  • †Foveosporites foveoreticulatus
  • †Foveosporites sp. 1informal
  • †Foveosporites sp. 2informal
• †Foveotriletes
  • †Foveotriletes parvirectus – or unidentified comparable form
• †Fraxinoipollenites
  • †Fraxinoipollenites fragilis – or unidentified comparable form
  • †Fraxinoipollenites fragilis
• †Frechiella
  • †Frechiella helvetica – or unidentified comparable form
• †Frenelopsis
  • †Frenelopsis sp.
• †Frenguelliella
  • †Frenguelliella inexspectata
  • †Frenguelliella sp.
  • †Frenguelliella tapiai – or unidentified comparable form
  • †Frenguelliella tapiai
• †Frenguelliphlebia – type locality for genus
  • †Frenguelliphlebia labandeirai – type locality for species
• †Frutexites
  • †Frutexites sp.
• †Furcirhynchia
  • †Furcirhynchia trechmanni – or unidentified comparable form
• †Futalognkosaurus – type locality for genus
  • †Futalognkosaurus dukei – type locality for species
• †Gabonisporis
  • †Gabonisporis vigourouxii
• †Galeacornea – tentative report
  • †Galeacornea sp.
• †Gallegomorphoptila – type locality for genus
• †Gallegomorphoptila
  • †Gallegomorphoptila acostai – type locality for species
  • †Gallegomorphoptila acostai
  • †Gallegomorphoptila breviptera – type locality for species
  • †Gallegomorphoptila gigantea – type locality for species
  • †Gallegomorphoptila kotejai – type locality for species
  • †Gallegomorphoptila pulcherrima – type locality for species
• †Gallegosichnus – type locality for genus
  • †Gallegosichnus garridoi – type locality for species
• †Gamerroites
  • †Gamerroites psilasaccus – or unidentified comparable form
  • †Gamerroites psilasaccus
  • †Gamerroites sp. Ainformal
  • †Gamerroites volkheimeri
• †Garateastrea – type locality for genus
• †Garateastrea
  • †Garateastrea bardanegrensis – type locality for species
  • †Garateastrea sp.
• †Gasparinisaura – type locality for genus
• †Gasparinisaura
  • †Gasparinisaura cincosaltensis – type locality for species
  • †Gasparinisaura cincosaltensis
• †Gasparinisuchus – type locality for genus
• †Gasparinisuchus
  • †Gasparinisuchus peirosauroides – type locality for species
  • †Gasparinisuchus peirosauroides
• †Gasteroclupea
  • †Gasteroclupea branisai
• †Gastrochaenolites
  • †Gastrochaenolites isp.
• †Geinitzia
  • †Geinitzia sp.
• †Gemelina – type locality for genus
• †Gemelina
  • †Gemelina triangularis – type locality for species
  • †Gemelina triangularis
• †Gemmatricolpites
  • †Gemmatricolpites sp.informal
  • †Gemmatricolpites sp.
• †Genyodectes – type locality for genus
  • †Genyodectes serus – type locality for species
• †Geosaurus
  • †Geosaurus araucaniensis
  • †Geosaurus sp.
• †Gervillaria – tentative report
• †Gervillaria
  • †Gervillaria alaeformis
  • †Gervillaria alatior
  • †Gervillaria palas
  • †Gervillaria pallas
  • †Gervillaria sp.
• †Gervilleioperna
  • †Gervilleioperna turgida
• †Gervillella
  • †Gervillella araucana – type locality for species
  • †Gervillella araucana
  • †Gervillella aviculoides
  • †Gervillella sp.
• †Gervillia
  • †Gervillia anceps
  • †Gervillia sp.
• †Giganotosaurus – type locality for genus
• †Giganotosaurus
  • †Giganotosaurus carolinii – type locality for species
  • †Giganotosaurus carolinii
  • †Giganotosaurus sp.
• †Ginkgocycadophytus
  • †Ginkgocycadophytus sp.informal
• †Ginkgoites
  • †Ginkgoites skottsbergii
  • †Ginkgoites sp. 1informal
  • †Ginkgoites sp. 2informal
• †Gleicheniidites
  • †Gleicheniidites aptianus – type locality for species
  • †Gleicheniidites juliensis
  • †Gleicheniidites rigidus – type locality for species
  • †Gleicheniidites senonicus
  • †Gleicheniidites serratus – type locality for species
  • †Gleicheniidites serratus
  • †Gleicheniidites sp.informal
  • †Gleicheniidites sp.
  • †Gleicheniidites sp. 1informal
  • †Gleicheniidites sp. 2informal
  • †Gleicheniidites sp. 3informal
  • †Gleicheniidites sp. Ainformal
  • †Gleicheniidites sp. Binformal
  • †Gleicheniidites sp. Cinformal
• †Gleichenites
  • †Gleichenites gracilis – or unidentified related form
  • †Gleichenites micromerus – or unidentified comparable form
  • †Gleichenites san-martini
  • †Gleichenites sanmartini
  • †Gleichenites sp.informal
  • †Gleichenites sp.
  • †Gleichenites sp. 1informal
  • †Gleichenites sp. 2informal
• †Globularia
  • †Globularia catanlilensis – or unidentified comparable form
  • †Globularia sp.
• †Glomerula
  • †Glomerula lombricus
  • †Glomerula serpentina – or unidentified comparable form
• †Glycymeris
  • †Glycymeris feruglioi – or unidentified comparable form
  • †Glycymeris feruglioli
  • †Glycymeris sp.
• †Glyphea
  • †Glyphea oculata
  • †Glyphea sp.
• †Gnetaceaepollenites
  • †Gnetaceaepollenites barghoornii
  • †Gnetaceaepollenites jansonii
  • †Gnetaceaepollenites sp.informal
  • †Gnetaceaepollenites sp.
• †Goeppertella
  • †Goeppertella sp. 1informal
• †Goldfussastrea – tentative report
  • †Goldfussastrea toarciensis – or unidentified comparable form
• †Gondwanatherium – type locality for genus
  • †Gondwanatherium patagonicum – type locality for species
• †Gondwanoperlidium – type locality for genus
• †Gondwanoperlidium – tentative report
• †Gondwanoperlidium
  • †Gondwanoperlidium argentina – type locality for species
  • †Gondwanoperlidium argentinarum – type locality for species
  • †Gondwanoperlidium mendozensis – type locality for species
• †Goniomya
  • †Goniomya sp.
• †Gonyaulacysta
  • †Gonyaulacysta spp.
• †Gracilisuchus – type locality for genus
• †Gracilisuchus
  • †Gracilisuchus stipanicicorum – type locality for species
  • †Gracilisuchus stipanicicorum
• †Grallator
  • †Grallator sp.
• †Grammatodon – tentative report
• †Grammatodon
  • †Grammatodon costulatus
  • †Grammatodon sp.
  • †Grammatodon sulcatinus
  • †Grammatodon toyorensis – or unidentified comparable form
• †Granulatisporites
  • †Granulatisporites sp.
  • †Granulatisporites spp.informal
• †Grapnelispora
  • †Grapnelispora evansii
  • †Grapnelispora loncochensis
  • †Grapnelispora sp.
• †Gregariella
  • †Gregariella amara – type locality for species
• †Groebericeras
  • †Groebericeras bifrons – type locality for species
  • †Groebericeras bifrons
• †Groebertherium – type locality for genus
• †Groebertherium
  • †Groebertherium novasi – type locality for species
  • †Groebertherium stipanicici – type locality for species
  • †Groebertherium stipanicici
• †Gryphaea
  • †Gryphaea sp.
• †Gryphaeostrea
  • †Gryphaeostrea callophyla
  • †Gryphaeostrea callophylla
  • †Gryphaeostrea guaranitica
• †Gualoscytina – type locality for genus
  • †Gualoscytina mayae – type locality for species
• †Gualosuchus – type locality for genus
• †Gualosuchus
  • †Gualosuchus reigi – type locality for species
  • †Gualosuchus reigi
• †Guaymayenia – type locality for genus
  • †Guaymayenia paramillisensis – type locality for species
• †Guidonia – tentative report
  • †Guidonia sp.
• †Gyrochorte
  • †Gyrochorte comosa
• †Gyrolepidoides
  • †Gyrolepidoides cuyanus
  • †Gyrolepidoides multistriatus
• †Hadrosaurichnus – type locality for genus
  • †Hadrosaurichnus australis – type locality for species
• †Hafniasphaera
  • †Hafniasphaera fluens – or unidentified comparable form
• †Haloragacidites
  • †Haloragacidites harrisii
  • †Haloragacidites trioratus
• †Hamulatisporis
  • †Hamulatisporis sp. Binformal
• †Hamusina – tentative report
  • †Hamusina wahnishae – type locality for species
• †Harpagodes
  • †Harpagodes sp.
• †Harpax
  • †Harpax rapa
• †Harpoceras
  • †Harpoceras sp.
  • †Harpoceras subexaratum – or unidentified related form
• †Hatchericeras
  • †Hatchericeras patagonense
  • †Hatchericeras sp.
• †Hausmannia
  • †Hausmannia papilio
  • †Hausmannia sp. 1informal
• †Hecticoceras
  • †Hecticoceras discoides – or unidentified comparable form
  • †Hecticoceras discoides
  • †Hecticoceras hersilia
  • †Hecticoceras lairense – or unidentified related form
  • †Hecticoceras lairense – or unidentified comparable form
  • †Hecticoceras lairense
  • †Hecticoceras proximum
  • †Hecticoceras sp.
  • †Hecticoceras virguloides – or unidentified comparable form
  • †Hecticoceras virguloides
• †Heidiphyllum
  • †Heidiphyllum sp. 1informal
• †Helicancylus
  • †Helicancylus bonarellii – type locality for species
  • †Helicancylus bonarellii
  • †Helicancylus patagonicus
• †Hemiprotosuchus – type locality for genus
  • †Hemiprotosuchus leali – type locality for species
• †Henosferus – type locality for genus
  • †Henosferus molus – type locality for species
• †Henrisporites
  • †Henrisporites elegans – type locality for species
  • †Henrisporites musachioi – type locality for species
  • †Henrisporites undulatus
• †Herbstosaurus – type locality for genus
  • †Herbstosaurus pigmaeus – type locality for species
• †Hermosablatta – type locality for genus
• †Hermosablatta – tentative report
• †Hermosablatta
  • †Hermosablatta crassatella – type locality for species
  • †Hermosablatta crassatella
  • †Hermosablatta pectinata – type locality for species
  • †Hermosablatta pygmaea – type locality for species
  • †Hermosablatta sp.
• †Herrerasaurus – type locality for genus
• †Herrerasaurus
  • †Herrerasaurus ischigualastensis – type locality for species
  • †Herrerasaurus ischigualastensis
  • †Herrerasaurus sp.
• †Heteroceras
  • †Heteroceras elegans
• †Heterodontosaurus – or unidentified comparable form
  • †Heterodontosaurus sp.
• †Heteroterma
  • †Heteroterma sp. Ainformal
• †Hibolithes
  • †Hibolithes jaculum – or unidentified related form
• †Hildaites
  • †Hildaites sp.
• †Hillichnus
  • †Hillichnus agrioensis
• †Himalayites
  • †Himalayites sp.
• †Holcoptychites
  • †Holcoptychites – type locality for speciesinformal
  • †Holcoptychites agrioensis
  • †Holcoptychites compressum
  • †Holcoptychites magdalenae – type locality for species
  • †Holcoptychites magdalenae – or unidentified comparable form
  • †Holcoptychites magdalenae
  • †Holcoptychites neuquensis – type locality for species
  • †Holcoptychites neuquensis
  • †Holcoptychites recopei – type locality for species
  • †Holcoptychites recopei – or unidentified comparable form
  • †Holcoptychites recopei
  • †Holcoptychites sp.
• †Homoeoparonaella
  • †Homoeoparonaella reciproca
• †Hoplites
  • †Hoplites vetustus
• †Hoplitocrioceras – type locality for genus
• †Hoplitocrioceras
  • †Hoplitocrioceras gentilii – type locality for species
  • †Hoplitocrioceras gentilii – or unidentified comparable form
  • †Hoplitocrioceras gentilii
  • †Hoplitocrioceras giovinei – type locality for species
  • †Hoplitocrioceras giovinei – or unidentified comparable form
  • †Hoplitocrioceras giovinei
  • †Hoplitocrioceras sp.
• †Hoplitoplacenticeras
  • †Hoplitoplacenticeras plasticum
• †Hoploparia
  • †Hoploparia antarctica
  • †Hoploparia arbei – type locality for species
  • †Hoploparia longimana
  • †Hoploparia sp.
• †Horstisporites
  • †Horstisporites feruglioi – type locality for species
  • †Horstisporites harrisii – or unidentified comparable form
  • †Horstisporites iridodea – type locality for species
• †Hughesisporites
  • †Hughesisporites patagonicus – type locality for species
  • †Hughesisporites patagonicus
  • †Hughesisporites rugulatus
• †Huitrinipollenites
  • †Huitrinipollenites transitorius
• †Huncalotis
  • †Huncalotis millaini – type locality for species
• †Hydrobia
  • †Hydrobia sp.
• †Hypophylloceras
  • †Hypophylloceras lestai
  • †Hypophylloceras sp.
• †Hysteroceras
  • †Hysteroceras leanzai
• †Hystrichosphaerina
  • †Hystrichosphaerina pulchrum
  • †Hystrichosphaerina schindewolfii
• †Ignotosaurus – type locality for genus
  • †Ignotosaurus fragilis – type locality for species
• †Ilexpollenites
  • †Ilexpollenites salamanquensis
• †Ilokelesia – type locality for genus
  • †Ilokelesia aguadagrandensis – type locality for species
• †Impagidinium
  • †Impagidinium sp.
• †Inaperturopollenites
  • †Inaperturopollenites sp.
• †Indosphinctes – tentative report
  • †Indosphinctes sp.
• †Ingenierichnus – type locality for genus
  • †Ingenierichnus sierrai – type locality for species
• †Iniskinites – tentative report
• †Iniskinites
  • †Iniskinites cadoceroides – or unidentified comparable form
  • †Iniskinites crassus
  • †Iniskinites evolutus – type locality for species
  • †Iniskinites gulisanoi
  • †Iniskinites sp. Ainformal
  • †Iniskinites subtransiens – or unidentified related form
  • †Iniskinites subtransiens
• †Inoceramus
  • †Inoceramus anomiaeformis – or unidentified related form
  • †Inoceramus mechanquilensis
  • †Inoceramus sp.
  • †Inoceramus urius – or unidentified comparable form
• †Inoperna
  • †Inoperna sp.
• †Interulobites
  • †Interulobites intraverrucatus
  • †Interulobites pseudoreticulatus – or unidentified comparable form
  • †Interulobites sp.informal
  • †Interulobites sp.
  • †Interulobites triangularis
• †Intiornis – type locality for genus
  • †Intiornis inexpectatus – type locality for species
• †Iotrigonia
  • †Iotrigonia sp.
• †Isabelidinium
  • †Isabelidinium sp.
• †Isaberrysaura – type locality for genus
  • †Isaberrysaura mollensis – type locality for species
• †Isastrea
  • †Isastrea sp.
• †Ischichucasyne
  • †Ischichucasyne cladocosta – type locality for species
• †Ischigualastia – type locality for genus
• †Ischigualastia
  • †Ischigualastia jenseni – type locality for species
  • †Ischigualastia sp.
• †Ischyosporites
  • †Ischyosporites gremius
  • †Ischyosporites sp.informal
  • †Ischyosporites sp.
  • †Ischyosporites volkheimeri
• †Isognomon
  • †Isognomon jupiter
  • †Isognomon leona
  • †Isognomon lotenoensis
  • †Isognomon nanus
  • †Isognomon ricordeanus
  • †Isognomon sp.
• †Jabronella
  • †Jabronella michaelis – or unidentified related form
• †Jachaleria – type locality for genus
• †Jachaleria
  • †Jachaleria colorata – type locality for species
  • †Jachaleria platygnathus – type locality for species
  • †Jachaleria platygnathus
• †Jaworskiella
  • †Jaworskiella sp.
• †Johnstonia
  • †Johnstonia sp. 1informal
  • †Johnstonia sp. 2informal
  • †Johnstonia sp. 3informal
• †Jonesia – tentative report
  • †Jonesia sp.
• †Juraphyllites
  • †Juraphyllites libertus
  • †Juraphyllites planispira – or unidentified comparable form
  • †Juraphyllites sp.
• †Jurassiphorus – tentative report
  • †Jurassiphorus triadicus – or unidentified comparable form
• †Kachaikenia – type locality for genus
  • †Kachaikenia compuesta – type locality for species
• †Kaikaifilusaurus – type locality for genus
  • †Kaikaifilusaurus calvoi – type locality for species
• †Kalentera
  • †Kalentera sp.
• †Kallosphaeridium
  • †Kallosphaeridium sp.
• †Karakaschiceras
  • †Karakaschiceras attenuatus
  • †Karakaschiceras lycoris – type locality for species
  • †Karakaschiceras neumayri
  • †Karakaschiceras sp.
• †Katepensaurus – type locality for genus
  • †Katepensaurus goicoecheai – type locality for species
• †Kawasphenodon – type locality for genus
  • †Kawasphenodon expectatus – type locality for species
• †Kilianiceras
  • †Kilianiceras damesi
• †Kiokansium
  • †Kiokansium unituberculatum
• †Klukisporites
  • †Klukisporites foveolatus
  • †Klukisporites labiatus – or unidentified comparable form
  • †Klukisporites sp.
  • †Klukisporites variegatus
• †Kobyastraea
  • †Kobyastraea louisae – type locality for species
• †Koilamasuchus – type locality for genus
  • †Koilamasuchus gonzalezdiazi – type locality for species
• †Koloceras
  • †Koloceras talenkanum
• †Kolymia
  • †Kolymia apollo – tentative report
  • †Kolymia apollo
• †Kolymonectes
  • †Kolymonectes sp.
  • †Kolymonectes weaveri
• †Kouphichnium
  • †Kouphichnium sp.
• †Kurtziana
  • †Kurtziana sp. 1informal
  • †Kurtziana sp. 2informal
• †Labeceras
  • †Labeceras crassetuberculatum
  • †Labeceras singulare
  • †Labeceras sp.
• †Laevaptychus
  • †Laevaptychus sp.
• †Laevigatosporites
  • †Laevigatosporites belfordii
  • †Laevigatosporites discordatus – or unidentified comparable form
  • †Laevigatosporites gracilis
  • †Laevigatosporites ovatus
  • †Laevigatosporites sp.
  • †Laevigatosporites vulgaris
• †Lagerpeton – type locality for genus
• †Lagerpeton
  • †Lagerpeton chanarensis – type locality for species
  • †Lagerpeton chanarensis
• †Lagosuchus – type locality for genus
• †Lagosuchus
  • †Lagosuchus sp.
  • †Lagosuchus talampayensis – type locality for species
• †Lahillia
  • †Lahillia larseni
  • †Lahillia luisa
  • †Lahillia sp.
  • †Lahillia tetrica
• †Lamarqueavis – type locality for genus
  • †Lamarqueavis australis – type locality for species
• †Lamarquesaurus – type locality for genus
  • †Lamarquesaurus cabazai – type locality for species
• †Laocoetis
  • †Laocoetis paradoxa
  • †Laocoetis procumbens
  • †Laocoetis sp.
• †Lapampasaurus – type locality for genus
  • †Lapampasaurus cholinoi – type locality for species
• †Laplatasaurus – type locality for genus
• †Laplatasaurus
  • †Laplatasaurus araukanicus – type locality for species
  • †Laplatasaurus araukanicus
• †Lariojablatta – type locality for genus
• †Lariojablatta
  • †Lariojablatta chanarensis – type locality for species
  • †Lariojablatta neiffi – type locality for species
• †Lariojaprosbole – type locality for genus
  • †Lariojaprosbole melchori – type locality for species
• †Laurophyllum
  • †Laurophyllum hickenii – type locality for species
  • †Laurophyllum kurtzi
  • †Laurophyllum proteaefolium
• †Lectavis – type locality for genus
  • †Lectavis bretincola – type locality for species
• †Ledina
  • †Ledina lepida
• †Leinkupal – type locality for genus
  • †Leinkupal laticauda – type locality for species
• †Leiosphaeridia
  • †Leiosphaeridia hyalina
  • †Leiosphaeridia menendezii
  • †Leiosphaeridia sp. Binformal
  • †Leiosphaeridia spp. Einformal
  • †Leiosphaeridia spp. Finformal
  • †Leiosphaeridia spp. Ginformal
• †Leiotriletes
  • †Leiotriletes regularis – or unidentified comparable form
  • †Leiotriletes sp.
• †Leonardus – type locality for genus
  • †Leonardus cuspidatus – type locality for species
• †Leonerasaurus – type locality for genus
  • †Leonerasaurus taquetrensis – type locality for species
• †Lepidopteris
  • †Lepidopteris sp. 1informal
• †Lepidotes
  • †Lepidotes pusillus
  • †Lepidotes sp.
• †Leptolepidites
  • †Leptolepidites irregularis
  • †Leptolepidites macroverrucatus
  • †Leptolepidites macroverrucosus
  • †Leptolepidites major
  • †Leptolepidites proxigranulatus
  • †Leptolepidites sp.
  • †Leptolepidites verrucatus
• †Leptomaria
  • †Leptomaria sp.
• †Lessemsaurus – type locality for genus
  • †Lessemsaurus sauropoides – type locality for species
• †Leufuichthys – type locality for genus
• †Leufuichthys
  • †Leufuichthys minimus – type locality for species
  • †Leufuichthys minimus
• †Lewalanipollis
  • †Lewalanipollis senectus
• †Lewisuchus – type locality for genus
• †Lewisuchus
  • †Lewisuchus admixtus – type locality for species
  • †Lewisuchus admixtus
• †Leyesaurus – type locality for genus
  • †Leyesaurus marayensis – type locality for species
• †Ligabueino – type locality for genus
  • †Ligabueino andesi – type locality for species
• †Ligabuesaurus – type locality for genus
  • †Ligabuesaurus leanzai – type locality for species
• †Liliacidites – tentative report
• †Liliacidites
  • †Liliacidites crassibaculatus – or unidentified comparable form
  • †Liliacidites crassibaculatus
  • †Liliacidites crassilabratus
  • †Liliacidites kaitangataensis – or unidentified comparable form
  • †Liliacidites kaitangataensis
  • †Liliacidites regularis – or unidentified comparable form
  • †Liliacidites regularis
  • †Liliacidites sp.informal
  • †Liliacidites sp.
  • †Liliacidites sp. 1informal
  • †Liliacidites sp. 2informal
  • †Liliacidites sp. 3informal
  • †Liliacidites tectatus – or unidentified comparable form
  • †Liliacidites variegatus – or unidentified comparable form
  • †Liliacidites variegatus
  • †Liliacidites vermireticulatus
• †Lilloettia
  • †Lilloettia steinmanni
• †Lima
  • †Lima sp.
• †Limatula
  • †Limatula sp.
• †Limayichnus – type locality for genus
• †Limayichnus
  • †Limayichnus major – type locality for species
  • †Limayichnus major
• †Limaysaurus
  • †Limaysaurus tessonei – type locality for species
  • †Limaysaurus tessonei
• †Limbicysta
  • †Limbicysta sp.
• †Limenavis – type locality for genus
  • †Limenavis patagonica – type locality for species
• †Linderochelys – type locality for genus
  • †Linderochelys rinconensis – type locality for species
• †Linearis
  • †Linearis semicostata – or unidentified comparable form
  • †Linearis sp.
• †Linguifolium
  • †Linguifolium sp. 1informal
  • †Linguifolium sp. 2informal
• †Linonema
  • †Linonema calyx
• †Lioceratoides
  • †Lioceratoides sp.informal
• †Liopleurodon
  • †Liopleurodon sp.
• †Liostrea
  • †Liostrea sp.
• †Liparoceras
  • †Liparoceras bechei – or unidentified comparable form
  • †Liparoceras cheltiense – or unidentified comparable form
• †Liquidambar
  • †Liquidambar integrifolium
• †Lissoceratoides
  • †Lissoceratoides erato – or unidentified comparable form
  • †Lissoceratoides erato
• †Lissochilus – or unidentified comparable form
  • †Lissochilus sp. nov.informal
• †Lithacoceras – report made of unidentified related form or using admittedly obsolete nomenclature
• †Lithacoceras
  • †Lithacoceras picunleufuense – type locality for species
  • †Lithacoceras picunleufuense
• †Lithacosphinctes
  • †Lithacosphinctes janus – or unidentified related form
  • †Lithacosphinctes janus
• †Lithancylus
  • †Lithancylus guanacoense
• †Lithodinia
  • †Lithodinia sp.
• †Lithophaga
  • †Lithophaga sp.
• †Lithotrochus
  • †Lithotrochus humboldtii
  • †Lithotrochus rothi – or unidentified comparable form
• †Llanosuchus – type locality for genus
  • †Llanosuchus tamaensis – type locality for species
• †Lobifolia
  • †Lobifolia sp. 1informal
• †Lobonotus
  • †Lobonotus lobulata
  • †Lobonotus sp.
• †Lomalatachelys – type locality for genus
  • †Lomalatachelys neuquina – type locality for species
• †Lomasuchus – type locality for genus
  • †Lomasuchus palpebrosus – type locality for species
• †Loncosaurus – type locality for genus
  • †Loncosaurus argentinus – type locality for species
• †Longapertites
  • †Longapertites patagonicus
  • †Longapertites sp.
  • †Longapertites vaneendenburgi – or unidentified related form
• †Lucina – report made of unidentified related form or using admittedly obsolete nomenclature
• †Lucina
  • †Lucina antarctandica
  • †Lucina laevis – tentative report
  • †Lucina neuquensis – or unidentified comparable form
  • †Lucina neuquensis
  • †Lucina sp.
• †Luperosuchus – type locality for genus
• †Luperosuchus
  • †Luperosuchus fractus – type locality for species
  • †Luperosuchus fractus
• †Lusatisporis
  • †Lusatisporis sp.informal
• †Lycettia
  • †Lycettia hypertrigona – type locality for species
  • †Lycettia hypertrigona
  • †Lycettia hypertrigonia
• †Lycopodiumsporites
  • †Lycopodiumsporites austroclavatidites
  • †Lycopodiumsporites sp. 1informal
  • †Lycopodiumsporites sp. 2informal
• †Lygistepollenites
  • †Lygistepollenites florinii
• †Lygodiidites
  • †Lygodiidites sp. 1informal
• †Lyriochlamys
  • †Lyriochlamys modestus
• †Lyticoceras
  • †Lyticoceras pseudoregale
• †Maccoyella
  • †Maccoyella sp.
• †Macrogryphosaurus – type locality for genus
  • †Macrogryphosaurus gondwanicus – type locality for species
• †Macrurosaurus – or unidentified comparable form
  • †Macrurosaurus sp.
• †Maeandrostylis – tentative report
  • †Maeandrostylis jaworskii
• †Malarguesaurus – type locality for genus
• †Malarguesaurus
  • †Malarguesaurus florenciae – type locality for species
  • †Malarguesaurus florenciae
• †Malletia
  • †Malletia pencanoides
• †Mancusoblatta – type locality for genus
  • †Mancusoblatta pulchella – type locality for species
• †Manidens – type locality for genus
  • †Manidens condorensis – type locality for species
• †Manumiella – or unidentified comparable form
• †Manumiella
  • †Manumiella complex
  • †Manumiella cretacea
  • †Manumiella druggii
• †Mapucheastrea – type locality for genus
• †Mapucheastrea
  • †Mapucheastrea andina – type locality for species
  • †Mapucheastrea andina
• †Mapusaurus – type locality for genus
  • †Mapusaurus roseae – type locality for species
• †Maputrigonia
  • †Maputrigonia pichimoncolensis
• †Marasuchus
  • †Marasuchus lilloensis – type locality for species
  • †Marasuchus lilloensis
• †Marattia
  • †Marattia sp. 1informal
• †Marattisporites
  • †Marattisporites sacabratus
  • †Marattisporites scabratus
• †Maresaurus – type locality for genus
  • †Maresaurus coccai – type locality for species
• †Martinavis
  • †Martinavis minor – type locality for species
  • †Martinavis saltariensis – type locality for species
  • †Martinavis sp.
  • †Martinavis vincei – type locality for species
  • †Martinavis whetstonei – type locality for species
• †Masculostrobus
  • †Masculostrobus sp. 1informal
• †Massetognathus – type locality for genus
• †Massetognathus
  • †Massetognathus pascuali – type locality for species
  • †Massetognathus pascuali
• †Matonidium
  • †Matonidium sp. 1informal
• †Matonisporites
  • †Matonisporites sp.informal
  • †Matonisporites sp.
• †Mauisaurus – or unidentified comparable form
  • †Mauisaurus sp.
• †Mecochirus
  • †Mecochirus robbianoi – type locality for species
• †Megacucullaea
  • †Megacucullaea kraussi – or unidentified comparable form
• †Megaloolithus
  • †Megaloolithus jabalpurensis – type locality for species
  • †Megaloolithus jabalpurensis
• †Megalosaurus
  • †Megalosaurus chubutensis – type locality for species
  • †Megalosaurus inexpectatus – type locality for species
• †Megaraptor – type locality for genus
• †Megaraptor
  • †Megaraptor namunhuaiquii – type locality for species
  • †Megaraptor namunhuaiquii
• †Meleagrinella
  • †Meleagrinella sp.
• †Membranilarnacia
  • †Membranilarnacia angustivela
• †Membranosphaera – tentative report
  • †Membranosphaera sp.informal
• †Mendicodinium
  • †Mendicodinium sp.
• †Mendocinichthys – type locality for genus
  • †Mendocinichthys brevis – type locality for species
• †Mendozachelys – type locality for genus
  • †Mendozachelys wichmanni – type locality for species
• †Mendozachorista – type locality for genus
  • †Mendozachorista volkheimeri – type locality for species
• †Mendozasaurus – type locality for genus
  • †Mendozasaurus neguyelap – type locality for species
• †Meretrix
  • †Meretrix chalcedonica
• †Meridiceras
  • †Meridiceras amolanasense
  • †Meridiceras celericrescens
  • †Meridiceras densicostatum – type locality for species
  • †Meridiceras externum – or unidentified comparable form
• †Mesocallista
  • †Mesocallista solitaria – or unidentified related form
  • †Mesocallista solitaria
• †Mesosingeria
  • †Mesosingeria oblonga – type locality for species
• †Mesungulatum – type locality for genus
• †Mesungulatum
  • †Mesungulatum houssayi – type locality for species
  • †Mesungulatum lamarquensis – type locality for species
• †Metaceratodus – or unidentified comparable form
  • †Metaceratodus sp.
• †Metriorhynchus
  • †Metriorhynchus brachyrhynchus – or unidentified related form
  • †Metriorhynchus sp.
• †Meyerella
  • †Meyerella rapax
• †Mica
  • †Mica sp.informal
• †Micracanthoceras
  • †Micracanthoceras sp.
  • †Micracanthoceras spinulosum
• †Microcachrydites
  • †Microcachrydites sp.informal
  • †Microcachrydites spp.informal
• †Microcachryidites – or unidentified comparable form
• †Microcachryidites
  • †Microcachryidites antarcticus
  • †Microcachryidites sp.
• †Microcachryridites
  • †Microcachryridites antarcticus
• †Microcoelus – type locality for genus
  • †Microcoelus patagonicus – type locality for species
• †Microderoceras
  • †Microderoceras birchi – or unidentified comparable form
• †Microfoveolatosporis
  • †Microfoveolatosporis sp.
  • †Microfoveolatosporis sp. Ainformal
• †Microphyllia – tentative report
• †Microphyllia
  • †Microphyllia flemingi – or unidentified comparable form
  • †Microphyllia sp.
• †Microreticulatisporites
  • †Microreticulatisporites sp.
• †Microsuchus – type locality for genus
  • †Microsuchus schilleri – type locality for species
• †Miltoceras – tentative report
• †Miltoceras
  • †Miltoceras chilcaense – type locality for species
  • †Miltoceras chilcaense
  • †Miltoceras reductispinosum – type locality for species
  • †Miltoceras sellae – or unidentified comparable form
  • †Miltoceras sp.
  • †Miltoceras sp. Ainformal
• †Minerisporites
  • †Minerisporites aequatus – type locality for species
  • †Minerisporites cheblii – type locality for species
  • †Minerisporites laceratus – type locality for species
  • †Minerisporites laceratus
  • †Minerisporites marginatus – or unidentified comparable form
  • †Minerisporites patagonicus
  • †Minerisporites sp.
• †Minetrigonia – tentative report
  • †Minetrigonia multicostata
• †Miomina
  • †Miomina mendozina – type locality for species
  • †Miomina riojana – type locality for species
• †Mixtipecten
  • †Mixtipecten chilensis
• †Modiolus – tentative report
• †Modiolus
  • †Modiolus baylei – tentative report
  • †Modiolus baylei
  • †Modiolus gerthi – type locality for species
  • †Modiolus gerthi
  • †Modiolus sp.
  • †Modiolus sp. Binformal
  • †Modiolus subsimplex – or unidentified comparable form
  • †Modiolus thiollierei – or unidentified comparable form
  • †Modiolus thiollieri – or unidentified comparable form
• †Mohriopsis – or unidentified comparable form
  • †Mohriopsis plastica
• †Mollesaurus – type locality for genus
• †Mollesaurus
  • †Mollesaurus periallus
  • †Mollesaurus perihallus – type locality for species
• †Momipites
  • †Momipites fragilis
• †Monosulcites
  • †Monosulcites sp.
• †Montlivaltia – tentative report
• †Montlivaltia
  • †Montlivaltia kobyi – or unidentified related form
  • †Montlivaltia sp.
• †Mucroserpula
  • †Mucroserpula mucroserpula
• †Muderongia
  • †Muderongia brachialis
  • †Muderongia pariata – or unidentified comparable form
  • †Muderongia siciliana – or unidentified comparable form
  • †Muderongia spp.
  • †Muderongia staurota
• †Muraenosaurus – or unidentified comparable form
  • †Muraenosaurus sp.
• †Muricingulisporis
  • †Muricingulisporis annulatus – or unidentified comparable form
  • †Muricingulisporis annulatus
• †Murospora
  • †Murospora sp.informal
• †Murusraptor – type locality for genus
  • †Murusraptor barrosaensis – type locality for species
• †Muscites
  • †Muscites sp.
  • †Muscites sp. 1informal
• †Musculus
  • †Musculus sp.
• †Mussaurus – type locality for genus
• †Mussaurus
  • †Mussaurus patagonicus – type locality for species
  • †Mussaurus patagonicus
• †Muyelensaurus – type locality for genus
  • †Muyelensaurus pecheni – type locality for species
• †Myloceras
  • †Myloceras andinus
  • †Myloceras sp.
• †Myoconcha
  • †Myoconcha neuquena
  • †Myoconcha sp.
  • †Myoconcha transatlantica
• †Myophorella – tentative report
• †Myophorella
  • †Myophorella araucana – or unidentified comparable form
  • †Myophorella araucana
  • †Myophorella garatei
  • †Myophorella sp.
  • †Myophorella tuberculata – or unidentified comparable form
  • †Myophorella volkheimeri
• †Myrcia
  • †Myrcia acutifolia
  • †Myrcia santacruzensis
• †Myriolepis
  • †Myriolepis sp.
• †Myriophyllum
  • †Myriophyllum sp.
• †Mytilaster
  • †Mytilaster edseli – tentative report
• †Nacella – or unidentified comparable form
  • †Nacella ovata
• †Naiaditaspora
  • †Naiaditaspora gemmata
• †Najash – type locality for genus
  • †Najash rionegrina – type locality for species
• †Namuncurania – type locality for genus
  • †Namuncurania malarguense – type locality for species
• †Narambuenatitan – type locality for genus
  • †Narambuenatitan palomoi – type locality for species
• †Naricopsina – tentative report
  • †Naricopsina sp.
• †Nathorstia
  • †Nathorstia alata
• †Natica
  • †Natica bulimoides – or unidentified comparable form
  • †Natica sp.
• †Neilo
  • †Neilo pencana
  • †Neilo sp.
• †Neiloides
  • †Neiloides rudis
• †Neithea
  • †Neithea hauthali
• †Nematosphaeropsis
  • †Nematosphaeropsis sp.
• †Neoaetosauroides – type locality for genus
• †Neoaetosauroides
  • †Neoaetosauroides engaeus – type locality for species
  • †Neoaetosauroides engaeus
• †Neoastieria
  • †Neoastieria patagonica – type locality for species
  • †Neoastieria patagonica
• †Neocalamites
  • †Neocalamites sp. 1informal
• †Neocampylites
  • †Neocampylites delmontanus – or unidentified comparable form
• †Neochallaia – type locality for genus
• †Neochallaia
  • †Neochallaia leonensis
  • †Neochallaia tellecheai – type locality for species
• †Neochetoceras – tentative report
  • †Neochetoceras sp.
• †Neocomites – tentative report
• †Neocomites
  • †Neocomites crassicostatus
  • †Neocomites sp.
  • †Neocomites transgrediens
• †Neocorbicula
  • †Neocorbicula dinosauriorum
  • †Neocorbicula pehuenchensis
• †Neocosmoceras
  • †Neocosmoceras sp.
• †Neohoploceras
  • †Neohoploceras arnoldi
• †Neomicrorbis – tentative report
  • †Neomicrorbis sp.
• †Neoprionoceras
  • †Neoprionoceras girardoti
  • †Neoprionoceras henrici – or unidentified comparable form
• †Neoraistrichia
  • †Neoraistrichia sp.
• †Neoraistrickia
  • †Neoraistrickia sp 1informal
  • †Neoraistrickia sp.informal
  • †Neoraistrickia sp.
  • †Neoraistrickia sp. Ainformal
  • †Neoraistrickia truncatus
• †Neorotodactylus – type locality for genus
  • †Neorotodactylus leonardii – type locality for species
• †Neosemionotus
  • †Neosemionotus puntanus – type locality for species
  • †Neosemionotus puntanus
• †Nerinea – tentative report
  • †Nerinea sp. 1informal
  • †Nerinea sp. 2informal
• †Neuqueniceras
  • †Neuqueniceras bodenbenderi – or unidentified comparable form
  • †Neuqueniceras steinmanni
• †Neuquenornis – type locality for genus
• †Neuquenornis
  • †Neuquenornis volans – type locality for species
  • †Neuquenornis volans
• †Neuquenraptor – type locality for genus
  • †Neuquenraptor argentinus – type locality for species
• †Neuquensaurus – type locality for genus
• †Neuquensaurus – tentative report
• †Neuquensaurus – or unidentified related form
• †Neuquensaurus
  • †Neuquensaurus australis – type locality for species
  • †Neuquensaurus australis
  • †Neuquensaurus robustus – type locality for species
  • †Neuquensaurus sp.
• †Neuquensuchus – type locality for genus
  • †Neuquensuchus universitas – type locality for species
• †Neuquinosmilia
  • †Neuquinosmilia gerthi – type locality for species
  • †Neuquinosmilia lospozonensis
• †Neusticemys
  • †Neusticemys neuquina
• †Nevesisporites
  • †Nevesisporites radiatus
  • †Nevesisporites vallatus
• †Nicaniella – tentative report
• †Nicaniella
  • †Nicaniella incae – or unidentified comparable form
• †Nilsonia
  • †Nilsonia sp.informal
  • †Nilsonia sp.
• †Noasaurus – type locality for genus
  • †Noasaurus leali – type locality for species
• †Nodicoeloceras
  • †Nodicoeloceras sp.
• †Nodomytilus – type locality for genus
  • †Nodomytilus trigonimimus – type locality for species
• †Nodosisporites
  • †Nodosisporites crenimurus
  • †Nodosisporites macrobaculatus – type locality for species
  • †Nodosisporites macrobaculatus
  • †Nodosisporites sp.informal
  • †Nodosisporites sp.
• †Noeggerathiopsis
  • †Noeggerathiopsis sp. 1informal
• †Nopcsaspondylus – type locality for genus
  • †Nopcsaspondylus alarconensis – type locality for species
• †Nothofagidites
  • †Nothofagidites aspera
  • †Nothofagidites dorotensis
  • †Nothofagidites kaitangataensis
  • †Nothofagidites nana
  • †Nothofagidites rocaensis – type locality for species
  • †Nothofagidites rocaensis
  • †Nothofagidites saraensis
• †Notidanodon
  • †Notidanodon dentatus
• †Notobatrachus – type locality for genus
• †Notobatrachus
  • †Notobatrachus degiustoi – type locality for species
  • †Notobatrachus degiustoi
  • †Notobatrachus reigi – type locality for species
• †Notoceratops – type locality for genus
  • †Notoceratops bonarelli – type locality for species
• †Notocolossus – type locality for genus
• †Notocolossus
  • †Notocolossus gonzalezparejasi – type locality for species
  • †Notocolossus gonzalezparejasi
• †Notodectes
  • †Notodectes argentinus – type locality for species
• †Notodonax
  • †Notodonax annae-eugenieae
• †Notoemys – type locality for genus
• †Notoemys
  • †Notoemys laticentralis – type locality for species
  • †Notoemys laticentralis
• †Notohypsilophodon – type locality for genus
  • †Notohypsilophodon comodorensis – type locality for species
• †Notonecta
  • †Notonecta mazzoniae – type locality for species
  • †Notonecta mazzoniae
• †Notopamphagopsis – type locality for genus
• †Notopamphagopsis – tentative report
  • †Notopamphagopsis bolivari – type locality for species
  • †Notopamphagopsis sp. 1informal
  • †Notopamphagopsis sp. 2informal
  • †Notopamphagopsis sp. 3informal
• †Notosuchus – type locality for genus
• †Notosuchus
  • †Notosuchus terrestris – type locality for species
  • †Notosuchus terrestris
• †Nucula
  • †Nucula oblonga
  • †Nucula sp.
  • †Nucula suboblonga
• †Nuculana
  • †Nuculana amuriensis – or unidentified comparable form
  • †Nuculana ovum – or unidentified comparable form
  • †Nuculana sp.
• †Nymphaeites
  • †Nymphaeites sp.
• †Nyssapollenites
  • †Nyssapollenites lanosus – or unidentified comparable form
  • †Nyssapollenites squamosus – or unidentified comparable form
• †Obtusisporis
  • †Obtusisporis obtusangulus
  • †Obtusisporis sp. Ainformal
• †Occisucysta
  • †Occisucysta tentoria
• †Ochotochlamys
  • †Ochotochlamys sp.
• †Ocuyuntaia – type locality for genus
  • †Ocuyuntaia arquata – type locality for species
• †Ogmoconchella
  • †Ogmoconchella ellipsoidea
  • †Ogmoconchella sp.
• †Olcostephanus
  • †Olcostephanus agrioensis – type locality for species
  • †Olcostephanus agrioensis
  • †Olcostephanus araucanus
  • †Olcostephanus atherstoni
  • †Olcostephanus boesei
  • †Olcostephanus curacoensis
  • †Olcostephanus duraznoensis – type locality for species
  • †Olcostephanus duraznoensis
  • †Olcostephanus laticosta – type locality for species
  • †Olcostephanus laticosta
  • †Olcostephanus minigrammi
  • †Olcostephanus permolestus
  • †Olcostephanus sp.
  • †Olcostephanus subandina
  • †Olcostephanus variegatus
• †Oligosphaeridium
  • †Oligosphaeridium complex
  • †Oligosphaeridium dividuum
  • †Oligosphaeridium poculum
  • †Oligosphaeridium pulcherrimun
• †Omphaloptycha
  • †Omphaloptycha jaworskii – or unidentified comparable form
• †Oosterella
  • †Oosterella sp.
• †Operculodinium
  • †Operculodinium centrocarpum
  • †Operculodinium radiculatum
• †Opertochasma
  • †Opertochasma cazadoriana
• †Ophiomorpha
  • †Ophiomorpha sp.
• †Ophthalmosaurus
  • †Ophthalmosaurus icenicus – type locality for species
  • †Ophthalmosaurus monocharactus
  • †Ophthalmosaurus sp.
• †Oplites
  • †Oplites wallichi – tentative report
• †Oppelismilia – tentative report
  • †Oppelismilia sp.
• †Orbiculiforma
  • †Orbiculiforma sp. Ainformal
• †Orbiculiformella
  • †Orbiculiformella incognita – or unidentified comparable form
  • †Orbiculiformella sp.
• †Ordinatus
  • †Ordinatus sp.
• †Orkoraptor – type locality for genus
  • †Orkoraptor burkei – type locality for species
• †Ornamentifera
  • †Ornamentifera echinata – or unidentified comparable form
  • †Ornamentifera sp.
  • †Ornamentifera sp. Ainformal
  • †Ornamentifera spp.informal
  • †Ornamentifera tuberculata – or unidentified comparable form
  • †Ornamentifera tuberculata
• †Orthosphinctes – tentative report
  • †Orthosphinctes sp.
• †Oscillopha
  • †Oscillopha hermanii
• †Osmundacidites
  • †Osmundacidites sp.informal
  • †Osmundacidites sp.
  • †Osmundacidites sp. Ainformal
  • †Osmundacidites wellmanii – or unidentified comparable form
  • †Osmundacidites wellmanii
  • †Osmundacidites wellmannii
• †Osmundocaulis
  • †Osmundocaulis sp. 1informal
• †Ostrea – or unidentified comparable form
• †Ostrea
  • †Ostrea damboreneae
  • †Ostrea minos
  • †Ostrea sp.
  • †Ostrea vulselloides
  • †Ostrea wilckensi
• †Otapiria – tentative report
• †Otapiria
  • †Otapiria dissimilis – or unidentified comparable form
  • †Otapiria neuquensis – type locality for species
  • †Otapiria neuquensis
  • †Otapiria pacifica
  • †Otapiria sp.
• †Otozamites
  • †Otozamites archangelskyi – type locality for species
  • †Otozamites archangelskyi
  • †Otozamites patagonicus – type locality for species
  • †Otozamites sp.
  • †Otozamites sp. 1informal
  • †Otozamites sp. 2informal
  • †Otozamites sp. 3informal
  • †Otozamites sp. 4informal
  • †Otozamites sp. 5informal
  • †Otozamites volkheimeri
• †Otuminisaurus – type locality for genus
  • †Otuminisaurus limensis – type locality for species
• †Overosaurus – type locality for genus
  • †Overosaurus paradasorum – type locality for species
• †Oxycerites – tentative report
• †Oxycerites
  • †Oxycerites oxynotus
  • †Oxycerites sp.
  • †Oxycerites tenuistriatus
• †Oxytoma
  • †Oxytoma cygnipes – or unidentified comparable form
  • †Oxytoma inequivalvis
  • †Oxytoma sp.
• †Pachydermophyllum
  • †Pachydermophyllum sp. 1informal
  • †Pachydermophyllum sp. 2informal
  • †Pachydermophyllum sp. 3informal
• †Pachymya
  • †Pachymya sp.
• †Pachypteris
  • †Pachypteris crassa – type locality for species
  • †Pachypteris sanjuanina
  • †Pachypteris sp. 1informal
• †Pacitrigonia
  • †Pacitrigonia de-stefanii
  • †Pacitrigonia hanetiana
  • †Pacitrigonia pampeana
  • †Pacitrigonia patagonica
  • †Pacitrigonia sobrali
  • †Pacitrigonia sp.
• †Pagiophyllum
  • †Pagiophyllum sp. 1informal
  • †Pagiophyllum sp. 2informal
• †Palaciosichnus – type locality for genus
  • †Palaciosichnus zettii – type locality for species
• †Palaeastacus
  • †Palaeastacus sussexiensis
  • †Palaeastacus terraereginae
• †Palaeocardita
  • †Palaeocardita peruviana – or unidentified comparable form
• †Palaeochersis – type locality for genus
  • †Palaeochersis talampayensis – type locality for species
• †Palaeocystodinium
  • †Palaeocystodinium lidiae
  • †Palaeocystodinium sp.
• †Palaeomohria
  • †Palaeomohria patagonica
  • †Palaeomohria sp 1informal
  • †Palaeomohria Type 1informal
  • †Palaeomohria Type 2informal
  • †Palaeomohria Type 3informal
• †Palaeoneilo
  • †Palaeoneilo elliptica – or unidentified comparable form
  • †Palaeoneilo galatea – tentative report
  • †Palaeoneilo patagonidica – or unidentified comparable form
  • †Palaeoneilo patagonidica
• †Palaeophrynops – type locality for genus
  • †Palaeophrynops patagonicus – type locality for species
• †Palaeophycus – or unidentified comparable form
• †Palaeophycus
  • †Palaeophycus sp.
• †Paleoanculosa
  • †Paleoanculosa sp.
• †Paleoazolla – type locality for genus
  • †Paleoazolla patagonica – type locality for species
• †Paleomutella
  • †Paleomutella sp.
• †Palissya
  • †Palissya sp. 1informal
  • †Palissya sp. 2informal
• †Palmophyllum
  • †Palmophyllum sp.
• †Pamparaptor – type locality for genus
  • †Pamparaptor micros – type locality for species
• †Panamericansaurus – type locality for genus
  • †Panamericansaurus schroederi – type locality for species
• †Panopea – tentative report
• †Panopea
  • †Panopea clausa – or unidentified comparable form
  • †Panopea clausa
  • †Panopea dupiniana
  • †Panopea gurgitis
  • †Panopea hauthali
  • †Panopea inferior
  • †Panopea neocomiensis
  • †Panopea pastorei
  • †Panopea patagonica
  • †Panopea simplex
  • †Panopea sp.
  • †Panopea sp. Cinformal
• †Panphagia – type locality for genus
  • †Panphagia protos – type locality for species
• †Pantanellium
  • †Pantanellium inornatum
• †Parabatrachopus – type locality for genus
  • †Parabatrachopus argentina – type locality for species
• †Paracuariceras – tentative report
  • †Paracuariceras sp.
• †Paracytheridea
  • †Paracytheridea rionegrina – type locality for species
• †Parahoplites
  • †Parahoplites nutfieldiensisex gr.
• †Parahsuum
  • †Parahsuum izeense
  • †Parahsuum simplum
• †Paralcidia – tentative report
  • †Paralcidia sp.
• †Parallelodon
  • †Parallelodon groeberi – type locality for species
  • †Parallelodon groeberi
  • †Parallelodon riccardii – type locality for species
  • †Parallelodon riccardii – tentative report
  • †Parallelodon riccardii
  • †Parallelodon sp.
• †Paranomia
  • †Paranomia sp.
• †Parapallasiceras
  • †Parapallasiceras sp.
• †Pararaucaria
  • †Pararaucaria sp. 1informal
• †Parasyrinx – or unidentified comparable form
  • †Parasyrinx sp.
• †Parodontoceras
  • †Parodontoceras sp.
• †Paronaella
  • †Paronaella corpulenta – or unidentified related form
  • †Paronaella sp. 1informal
  • †Paronaella sp. 2informal
  • †Paronaella variabilis
• †Parsimonia
  • †Parsimonia antiquata
  • †Parsimonia sp.
• †Partschiceras
  • †Partschiceras striatocostatum
• †Parvamussium
  • †Parvamussium pumilum
• †Pasambaya
  • †Pasambaya tellecheai
• †Pascualgnathus – type locality for genus
  • †Pascualgnathus polanskii – type locality for species
• †Pasottia
  • †Pasottia andina
• †Passendorferia
  • †Passendorferia sp.
  • †Passendorferia teresiformis – or unidentified comparable form
  • †Passendorferia teresiformis
• †Patagocardia
  • †Patagocardia peterseni
• †Patagoniaemys
  • †Patagoniaemys gasparinae – type locality for species
  • †Patagoniaemys gasparinae
• †Patagonichnornis – type locality for genus
  • †Patagonichnornis venetiorum – type locality for species
• †Patagoniophis – type locality for genus
• †Patagoniophis
  • †Patagoniophis parvus – type locality for species
  • †Patagoniophis parvus
• †Patagonykus – type locality for genus
  • †Patagonykus puertai – type locality for species
• †Patagopteryx – type locality for genus
  • †Patagopteryx deferrariisi – type locality for species
• †Patagosaurus – type locality for genus
• †Patagosaurus
  • †Patagosaurus fariasi – type locality for species
  • †Patagosaurus fariasi
  • †Patagosaurus sp.
• †Patagosuchus – type locality for genus
  • †Patagosuchus anielensis – type locality for species
• †Paulckella
  • †Paulckella covacevichi
  • †Paulckella nepos
• †Paxillitriletes
  • †Paxillitriletes kachaikense – type locality for species
  • †Paxillitriletes kachaikense
  • †Paxillitriletes menendezii
• †Pecten
  • †Pecten sp.
  • †Pecten vacaensis
• †Pediastrum
  • †Pediastrum boryanum – or unidentified related form
  • †Pediastrum sp.informal
• †Pehuenchesuchus – type locality for genus
  • †Pehuenchesuchus enderi – type locality for species
• †Pellegrinisaurus – type locality for genus
  • †Pellegrinisaurus powelli – type locality for species
• †Peltoceras
  • †Peltoceras athleta – or unidentified comparable form
  • †Peltoceras athleta
  • †Peltoceras convexum – or unidentified comparable form
  • †Peltoceras convexum
• †Peltoceratoides
  • †Peltoceratoides ballenaensis
  • †Peltoceratoides eugenii – or unidentified comparable form
  • †Peltoceratoides intercissus – or unidentified comparable form
  • †Peltoceratoides pressulus
• †Peltocrioceras
  • †Peltocrioceras deeckei
  • †Peltocrioceras sp.
• †Peninsulapollis
  • †Peninsulapollis askiniae
  • †Peninsulapollis gillii
  • †Peninsulapollis sp. 1informal
  • †Peninsulapollis sp. 2informal
  • †Peninsulapollis truswelliae – or unidentified comparable form
  • †Peninsulapollis truswellidae – or unidentified comparable form
  • †Peninsulapollis truswellidae
• †Penion – or unidentified related form
  • †Penion proavitus
• †Pennipollis
  • †Pennipollis peroreticulatus
• †Pentacrinus
  • †Pentacrinus sp.
• †Pentasauropus
  • †Pentasauropus sp.
• †Percossmanella – type locality for genus
  • †Percossmanella steinmannii – type locality for species
• †Perinopollenites
  • †Perinopollenites elatoides
• †Periporopollenites
  • †Periporopollenites demarcatus
• †Perisphinctes – report made of unidentified related form or using admittedly obsolete nomenclature
• †Perisphinctes
  • †Perisphinctes – type locality for species Ainformal
  • †Perisphinctes hillebrandti – or unidentified related form
  • †Perisphinctes hillebrandti – or unidentified comparable form
  • †Perisphinctes hillebrandti
  • †Perisphinctes mazuricus – or unidentified comparable form
  • †Perisphinctes mindowe – or unidentified comparable form
  • †Perisphinctes picteti – or unidentified comparable form
  • †Perisphinctes promiscuus – or unidentified related form
  • †Perisphinctes promiscuus
  • †Perisphinctes sp.
• †Peristerothyris
  • †Peristerothyris columbiniformis
• †Permoshurabia
  • †Permoshurabia argentina – type locality for species
• †Peromonolites
  • †Peromonolites sp.informal
  • †Peromonolites sp. 1informal
  • †Peromonolites sp. 2informal
  • †Peromonolites vellosus
• †Peronoceras
  • †Peronoceras sp.
• †Perotrilites
  • †Perotrilites majus
• †Perseophyllum
  • †Perseophyllum hauthalianum
• †Petrobrasaurus – type locality for genus
  • †Petrobrasaurus puestohernandezi – type locality for species
• †Phacelostylophyllum
  • †Phacelostylophyllum peruvianum – or unidentified comparable form
• †Phellinites
  • †Phellinites sp. 1informal
• †Phelopteria
  • †Phelopteria huitriniana – type locality for species
  • †Phelopteria huitriniana
  • †Phelopteria sp.
• †Phoberocysta
  • †Phoberocysta neocomica
• †Pholadomya
  • †Pholadomya agrioensis
  • †Pholadomya ambigua – or unidentified comparable form
  • †Pholadomya gigantea
  • †Pholadomya sp.
  • †Pholadomya spp.
• †Pholidophorus
  • †Pholidophorus dentatus
  • †Pholidophorus vallejensis – type locality for species
• †Phylites
  • †Phylites sp.
• †Phylloceras
  • †Phylloceras hebertinum
  • †Phylloceras sp.
  • †Phylloceras trifoliatum – or unidentified comparable form
• †Phyllocladidites
  • †Phyllocladidites mawsonii
• †Phyllopachyceras
  • †Phyllopachyceras sp.
• †Phyllopteroides
  • †Phyllopteroides laevis – or unidentified comparable form
• †Phyllotheca
  • †Phyllotheca sp. 1informal
• †Physa
  • †Physa wichmanni
• †Physodoceras
  • †Physodoceras sp. Ainformal
• †Piatnitzkyceras
  • †Piatnitzkyceras bonarellii – type locality for species
• †Piatnitzkysaurus – type locality for genus
  • †Piatnitzkysaurus floresi – type locality for species
• †Piatnitzyceras – tentative report
  • †Piatnitzyceras infirmum
• †Pictetia
  • †Pictetia ovalis
• †Picunichnus – type locality for genus
  • †Picunichnus benedettoi – type locality for species
• †Pilosisporites
  • †Pilosisporites trichopapillosus
  • †Pilosisporites verus
• †Pilula
  • †Pilula penita – or unidentified comparable form
• †Pinna
  • †Pinna cretacia – or unidentified related form
  • †Pinna folium – or unidentified comparable form
  • †Pinna freneixae – or unidentified comparable form
  • †Pinna morenoi
  • †Pinna robinaldina
  • †Pinna sp.
• †Pisanosaurus – type locality for genus
  • †Pisanosaurus mertii – type locality for species
• †Pitekunsaurus – type locality for genus
  • †Pitekunsaurus macayai – type locality for species
• †Placenticeras
  • †Placenticeras sp.
• †Placostegus
  • †Placostegus conchophilus – or unidentified comparable form
• †Placunopsis – tentative report
• †Placunopsis
  • †Placunopsis pichi – type locality for species
  • †Placunopsis pichi
  • †Placunopsis sp.
  • †Placunopsis striatula – or unidentified comparable form
• †Plagiostoma – tentative report
• †Plagiostoma
  • †Plagiostoma sp.
• †Planammatoceras
  • †Planammatoceras gerthi
  • †Planammatoceras planinsigne – or unidentified related form
• †Planolites
  • †Planolites sp.
• †Plateosaurus – or unidentified comparable form
  • †Plateosaurus sp.
• †Platycythereis – tentative report
  • †Platycythereis velata – type locality for species
• †Platyperla
  • †Platyperla marquati – type locality for species
• †Platypterygius – type locality for genus
  • †Platypterygius hauthali – type locality for species
• †Plegiocidaris
  • †Plegiocidaris sp.
• †Plesiopinna
  • †Plesiopinna pampeana – type locality for species
• †Pleuromeia
  • †Pleuromeia sp. 1informal
• †Pleuromya – tentative report
• †Pleuromya
  • †Pleuromya sp.
• †Pleurotomaria
  • †Pleurotomaria gerthi
  • †Pleurotomaria sp.
• †Plicacesta
  • †Plicacesta sp.
• †Plicatula – tentative report
• †Plicatula
  • †Plicatula georgiana
  • †Plicatula rapa
  • †Plicatula sp.
• †Pliosaurus
  • †Pliosaurus patagonicus – type locality for species
  • †Pliosaurus sp.
• †Podocarpidites
  • †Podocarpidites auriculatus
  • †Podocarpidites canadensis – or unidentified comparable form
  • †Podocarpidites elegans
  • †Podocarpidites elliptcus – or unidentified comparable form
  • †Podocarpidites ellipticus – or unidentified comparable form
  • †Podocarpidites ellipticus
  • †Podocarpidites futa
  • †Podocarpidites marwicki – or unidentified comparable form
  • †Podocarpidites marwickii
  • †Podocarpidites microreticuloidata
  • †Podocarpidites otagoensis – or unidentified comparable form
  • †Podocarpidites parviauriculata
  • †Podocarpidites parviauriculatus – or unidentified comparable form
  • †Podocarpidites parviauriculatus
  • †Podocarpidites rugulosus
  • †Podocarpidites sp.informal
  • †Podocarpidites sp.
  • †Podocarpidites sp. 2informal
  • †Podocarpidites spp.
  • †Podocarpidites verrucosus – or unidentified comparable form
  • †Podocarpidites vestitus – or unidentified comparable form
  • †Podocarpidites vestitus
• †Podocarpus
  • †Podocarpus sp. 1informal
• †Podosporites
  • †Podosporites sp. 1informal
• †Podozamites – tentative report
• †Podozamites
  • †Podozamites sp.
  • †Podozamites sp. 1informal
• †Polycingulatisporites
  • †Polycingulatisporites reduncus – or unidentified comparable form
• †Polygonatium
  • †Polygonatium sphaeroides
• †Polypodiaceoisporites
  • †Polypodiaceoisporites elegans
• †Polypodiidites
  • †Polypodiidites sp.
  • †Polypodiidites sp. Ainformal
• †Polyptychoceras
  • †Polyptychoceras sp.
• †Popovigocimex – type locality for genus
  • †Popovigocimex yurii – type locality for species
• †Portezueloemys – type locality for genus
  • †Portezueloemys patagonica – type locality for species
• †Posidonotis
  • †Posidonotis cancellata
• †Potrerillia – type locality for genus
  • †Potrerillia nervosa – type locality for species
• †Potrerilloblatta – type locality for genus
  • †Potrerilloblatta stipanicici – type locality for species
• †Potrerilloxyela – type locality for genus
  • †Potrerilloxyela menendezi – type locality for species
• †Praechlamys – tentative report
• †Praechlamys
  • †Praechlamys valoniensis – or unidentified comparable form
  • †Praechlamys valoniensis
• †Praeconocaryomma
  • †Praeconocaryomma sp.
  • †Praeconocaryomma whiteavesi – or unidentified comparable form
• †Praeconosphaera
  • †Praeconosphaera sphaeraconus
• †Praeleptosphinctes
  • †Praeleptosphinctes jaworskii – type locality for species
• †Praeparvicingula
  • †Praeparvicingula elementaria
  • †Praeparvicingula sp. 1informal
  • †Praeparvicingula sp. 2informal
  • †Praeparvicingula tlellensis
• †Priosphenodon – type locality for genus
• †Priosphenodon
  • †Priosphenodon avelasi – type locality for species
  • †Priosphenodon minimus – type locality for species
  • †Priosphenodon minimus
• †Priscaphander – or unidentified comparable form
  • †Priscaphander sp. Binformal
• †Probainognathus – type locality for genus
• †Probainognathus
  • †Probainognathus jenseni – type locality for species
  • †Probainognathus jenseni
• †Procerithium
  • †Procerithium nodosum – type locality for species
  • †Procerithium nulloi – type locality for species
  • †Procerithium nulloi
• †Prochelidella – type locality for genus
• †Prochelidella
  • †Prochelidella argentinae – type locality for species
  • †Prochelidella cerrobarcinae – type locality for species
  • †Prochelidella portezuelae – type locality for species
• †Profragum
  • †Profragum sanctacruzense
• †Prohinnites
  • †Prohinnites sp.
• †Propeamussium
  • †Propeamussium sp.
• †Propomatoceros
  • †Propomatoceros semicostatus
  • †Propomatoceros sulcicarinatus
• †Propylipollis
  • †Propylipollis ambiguus
  • †Propylipollis sp.
  • †Propylipollis tenuiexinus
• †Propyllipollis – tentative report
  • †Propyllipollis sp.informal
• †Protagelus
  • †Protagelus gratus
• †Proteacidites – tentative report
• †Proteacidites
  • †Proteacidites angulatus
  • †Proteacidites beddoesii
  • †Proteacidites parvus
  • †Proteacidites sp.informal
  • †Proteacidites sp.
  • †Proteacidites sp. Ainformal
  • †Proteacidites sp. Binformal
  • †Proteacidites subscabratus
  • †Proteacidites tenuiexinus
• †Proterochampsa – type locality for genus
• †Proterochampsa
  • †Proterochampsa barrionuevoi – type locality for species
  • †Proterochampsa barrionuevoi
  • †Proterochampsa sp.
• †Protocallianassa
  • †Protocallianassa patagonica
• †Protocardia
  • †Protocardia sp. – type locality for species
• †Protogrammoceras
  • †Protogrammoceras normannianumex gr.
  • †Protogrammoceras sp.
• †Protohemichenopus
  • †Protohemichenopus neuquensis
• †Protophylum
  • †Protophylum rugosum – or unidentified comparable form
• †Protosqualus
  • †Protosqualus argentinensis – type locality for species
• †Proxapertites – tentative report
  • †Proxapertites sp.informal
• †Pseudaptetoceras
  • †Pseudaptetoceras moerickei
  • †Pseudaptetoceras tricolore – type locality for species
  • †Pseudaptetoceras tricolore
• †Pseudhesperosuchus – type locality for genus
  • †Pseudhesperosuchus jachaleri – type locality for species
• †Pseudhimalayites
  • †Pseudhimalayites subpretiosus
• †Pseudobeaconia – type locality for genus
• †Pseudobeaconia
  • †Pseudobeaconia bracaccinii – type locality for species
  • †Pseudobeaconia celestae – type locality for species
  • †Pseudobeaconia celestae
  • †Pseudobeaconia cuyana
  • †Pseudobeaconia elegans – type locality for species
• †Pseudoceratium
  • †Pseudoceratium pelliferum
  • †Pseudoceratium sp.
• †Pseudochampsa
  • †Pseudochampsa ischigualastensis – type locality for species
• †Pseudocoeniopsis
  • †Pseudocoeniopsis wintoni – or unidentified comparable form
• †Pseudoctenis
  • †Pseudoctenis sp. 1informal
• †Pseudofavrella – tentative report
• †Pseudofavrella
  • †Pseudofavrella angulatiformis
  • †Pseudofavrella garatei
  • †Pseudofavrella sp.
• †Pseudolagosuchus – type locality for genus
• †Pseudolagosuchus
  • †Pseudolagosuchus major – type locality for species
  • †Pseudolagosuchus major
• †Pseudolimea
  • †Pseudolimea angusta
  • †Pseudolimea riccardii
  • †Pseudolimea symmetricainformal
• †Pseudolissoceras
  • †Pseudolissoceras zitteli
• †Pseudomelania
  • †Pseudomelania feruglioi
  • †Pseudomelania sp.
• †Pseudopantanellium
  • †Pseudopantanellium floridum
• †Pseudopecten
  • †Pseudopecten equivalvis – or unidentified related form
• †Pseudopeltoceras
  • †Pseudopeltoceras chauvinianum – or unidentified comparable form
• †Pseudosilesites
  • †Pseudosilesites russoi
• †Pseudotoites
  • †Pseudotoites argentinus – type locality for species
  • †Pseudotoites sphaeroceroides
  • †Pseudotoites transatlanticus – type locality for species
• †Pseudowinterapollis
  • †Pseudowinterapollis couperi
• †Psilatricolpites
  • †Psilatricolpites inargutus
  • †Psilatricolpites patagonicus
  • †Psilatricolpites sp.informal
  • †Psilatricolpites sp.
  • †Psilatricolpites sp. 1informal
• †Psilatricolporites
  • †Psilatricolporites salamanquensis – or unidentified comparable form
  • †Psilatricolporites sp.informal
  • †Psilatricolporites sp.
  • †Psilatricolporites sp. 1informal
  • †Psilatricolporites sp. 2informal
• †Psiloceras
  • †Psiloceras rectocosatum – or unidentified comparable form
  • †Psiloceras rectocostatum – or unidentified comparable form
  • †Psiloceras tilmanni – or unidentified comparable form
• †Pteraichnus
  • †Pteraichnus sp.
• †Pterodaustro – type locality for genus
  • †Pterodaustro guinazui – type locality for species
• †Pteromyrtea
  • †Pteromyrtea sp.
• †Pteroperna
  • †Pteroperna sp.
• †Pterophyllum
  • †Pterophyllum sp. 1informal
  • †Pterophyllum trichomatosum
• †Pterotrigonia
  • †Pterotrigonia cazadoriana
  • †Pterotrigonia coihuicoensis
  • †Pterotrigonia windhauseniana
• †Pteruchus
  • †Pteruchus sp. 1informal
• †Ptilophyllum
  • †Ptilophyllum acutifolium
  • †Ptilophyllum angustus – type locality for species
  • †Ptilophyllum antarcticum
  • †Ptilophyllum sp. 1informal
  • †Ptilophyllum sp. 2informal
  • †Ptilophyllum sp. 3informal
  • †Ptilophyllum sp. 4informal
  • †Ptilophyllum valvatum
• †Ptychoceras
  • †Ptychoceras sp.
• †Ptychomya
  • †Ptychomya koeneni
  • †Ptychomya sp.
  • †Ptychomya vacaensis
• †Pucapristis
  • †Pucapristis branisi
• †Puchenquia – tentative report
• †Puchenquia
  • †Puchenquia compressa – type locality for species
  • †Puchenquia compressa
  • †Puchenquia malarguensis
  • †Puchenquia mendozana – type locality for species
  • †Puchenquia mendozana
• †Puertasaurus – type locality for genus
  • †Puertasaurus reuili – type locality for species
• †Pugnellus
  • †Pugnellus hauthali – or unidentified related form
• †Pulchellablatta – type locality for genus
  • †Pulchellablatta nana – type locality for species
• †Pulvinites
  • †Pulvinites liasicus – type locality for species
  • †Pulvinites liasicus
  • †Pulvinites sp.
• †Punctatisporites
  • †Punctatisporites scabratus
  • †Punctatisporites sp.informal
• †Purranisaurus – type locality for genus
  • †Purranisaurus potens – type locality for species
• †Puzosia
  • †Puzosia vegaensis
• †Pycnodonte
  • †Pycnodonte groeberi
  • †Pycnodonte mendozana
  • †Pycnodonte pyrotheriorum
  • †Pycnodonte regionis
  • †Pycnodonte vesicularis
• †Pyropsis
  • †Pyropsis sp.
• †Quadraplanus
  • †Quadraplanus brossus
• †Quetecsaurus – type locality for genus
  • †Quetecsaurus rusconii – type locality for species
• †Quilmesaurus – type locality for genus
  • †Quilmesaurus curriei – type locality for species
• †Quirogatherium – type locality for genus
  • †Quirogatherium major – type locality for species
• †Racemonocolpites – tentative report
  • †Racemonocolpites sp.informal
• †Radstockiceras
  • †Radstockiceras sp.
• †Radulonectites
  • †Radulonectites sosneadoensis
• †Rastellum
  • †Rastellum clarae
• †Rayososaurus – type locality for genus
  • †Rayososaurus agrioensis – type locality for species
• †Rehmannia
  • †Rehmannia brancoi
  • †Rehmannia patagoniense – or unidentified comparable form
  • †Rehmannia patagoniense
  • †Rehmannia patagoniensis – or unidentified comparable form
  • †Rehmannia patagoniensis
  • †Rehmannia paucicostata
  • †Rehmannia stehni
• †Reigitherium – type locality for genus
• †Reigitherium
  • †Reigitherium bunodontum – type locality for species
  • †Reigitherium bunodontum
• †Reineckeia – tentative report
• †Reineckeia
  • †Reineckeia sp.
  • †Reineckeia stehni
  • †Reineckeia steinmanni
  • †Reineckeia striolata
• †Restrepophyllum – type locality for genus
  • †Restrepophyllum chiguoides – type locality for species
• †Reticulatisporites
  • †Reticulatisporites arcuatus
• †Reticuloidosporites
  • †Reticuloidosporites tenellis
• †Reticulosporis
  • †Reticulosporis sp. 1informal
  • †Reticulosporis sp. 2informal
  • †Reticulosporis sp. 3informal
• †Retidiporites
  • †Retidiporites camachoii
• †Retimonocolpites
  • †Retimonocolpites peroreticulatus – or unidentified comparable form
  • †Retimonocolpites peroreticulatus
  • †Retimonocolpites sp.informal
  • †Retimonocolpites sp.
  • †Retimonocolpites spp.informal
• †Retiophyllia – tentative report
  • †Retiophyllia sp.
• †Retitricolporites
  • †Retitricolporites chubutensis
  • †Retitricolporites sp. 1informal
• †Retitriletes
  • †Retitriletes austroclavatidites – or unidentified comparable form
  • †Retitriletes austroclavatidites
  • †Retitriletes baqueroense
  • †Retitriletes boqueroense
  • †Retitriletes douglasii
  • †Retitriletes eminulus – or unidentified comparable form
  • †Retitriletes sp.informal
  • †Retitriletes sp.
  • †Retitriletes sp. Ainformal
• †Retroceramus
  • †Retroceramus galoi – or unidentified related form
  • †Retroceramus galoi
  • †Retroceramus patagonicus – or unidentified comparable form
  • †Retroceramus patagonicus
  • †Retroceramus stehni – type locality for species
• †Rhabdocolpus
  • †Rhabdocolpus patagoniensis – type locality for species
• †Rhizocorallium
  • †Rhizocorallium sp.
• †Rhizomopteris
  • †Rhizomopteris sp. 1informal
• †Rhoipites
  • †Rhoipites baculatus
  • †Rhoipites minusculus
  • †Rhoipites sp.
  • †Rhoipites sp. 1informal
  • †Rhoipites sp. Binformal
• †Rhynchodiniopsis
  • †Rhynchodiniopsis sp.
• †Rhynchosauroides
  • †Rhynchosauroides sp.
• †Ricciopsis
  • †Ricciopsis grandensis – type locality for species
• †Rigalites – type locality for genus
  • †Rigalites ischigualastianus – type locality for species
• †Rinconsaurus – type locality for genus
  • †Rinconsaurus caudamirus – type locality for species
• †Rinetrigonia
  • †Rinetrigonia bustamantina
  • †Rinetrigonia wilckensi
  • †Rinetrigonia windhauseniana
• †Riojasaurus – type locality for genus
• †Riojasaurus
  • †Riojasaurus incertus – type locality for species
  • †Riojasaurus incertus
• †Riojasuchus – type locality for genus
  • †Riojasuchus tenuisceps – type locality for species
• †Rionegrochelys – type locality for genus
  • †Rionegrochelys caldieroi – type locality for species
• †Rionegrophis – type locality for genus
  • †Rionegrophis madtsoioides – type locality for species
• †Rocasaurus – type locality for genus
• †Rocasaurus – or unidentified comparable form
  • †Rocasaurus muniozi – type locality for species
  • †Rocasaurus sp.
• †Rogerbaletichnus – type locality for genus
• †Rogerbaletichnus
  • †Rogerbaletichnus aguilerai – type locality for species
  • †Rogerbaletichnus aguilerai
• †Rogersia
  • †Rogersia australis – type locality for species
• †Rosannia
  • †Rosannia manika
• †Rotularia
  • †Rotularia sp.
• †Roudairia
  • †Roudairia pampaensis
• †Rousea
  • †Rousea microreticulata
  • †Rousea patagonica – or unidentified comparable form
  • †Rousea patagonica
  • †Rousea sp.informal
  • †Rousea sp.
• †Rouseisporites
  • †Rouseisporites reticulatus
• †Ruffordia
  • †Ruffordia sp. 1informal
• †Ruffordiaspora
  • †Ruffordiaspora australiensis
  • †Ruffordiaspora cardielensis
  • †Ruffordiaspora ludbrookiae
  • †Ruffordiaspora Sp. 1informal
  • †Ruffordiaspora sp. Ainformal
  • †Ruffordiaspora ticoensis – or unidentified comparable form
  • †Ruffordiaspora ticoensis
• †Rugubivesiculites
  • †Rugubivesiculites sp. 2informal
  • †Rugubivesiculites spp. 1informal
• †Rugulatisporites
  • †Rugulatisporites chubutensis
  • †Rugulatisporites neuquenensis
  • †Rugulatisporites sp.informal
• †Ruprechtia – tentative report
  • †Ruprechtia castilloensis – type locality for species
• †Rutitrigonia
  • †Rutitrigonia kauffmani
• †Saaloscytina – type locality for genus
  • †Saaloscytina carmonae – type locality for species
• †Saccella
  • †Saccella tumida – or unidentified comparable form
• †Sagenopteris
  • †Sagenopteris sp. 1informal
  • †Sagenopteris sp. 2informal
• †Sakawairhynchia
  • †Sakawairhynchia marokopana
  • †Sakawairhynchia mokauensis – or unidentified comparable form
• †Salfitichnus – type locality for genus
  • †Salfitichnus mentoor – type locality for species
• †Salix
  • †Salix proteafolia
• †Salpingoporella
  • †Salpingoporella sp.
• †Saltasaurus – type locality for genus
  • †Saltasaurus loricatus – type locality for species
• †Saltenia – type locality for genus
• †Saltenia
  • †Saltenia ibanezi – type locality for species
  • †Saltenia ibanezi
• †Salvinia
  • †Salvinia preauriculata – or unidentified related form
• †Samaroblatta
  • †Samaroblatta corrientesina – type locality for species
  • †Samaroblatta gualoensis – type locality for species
  • †Samaroblatta sp.
• †Sanjuansaurus – type locality for genus
  • †Sanjuansaurus gordilloi – type locality for species
• †Sanmartinoceras
  • †Sanmartinoceras africanum
  • †Sanmartinoceras cardielense
  • †Sanmartinoceras sp.
  • †Sanmartinoceras sp. Ainformal
  • †Sanmartinoceras sp. Binformal
  • †Sanmartinoceras walshense
• †Sarcinella
  • †Sarcinella occidentalis
  • †Sarcinella sp.
• †Sarmientichnus – type locality for genus
  • †Sarmientichnus scagliai – type locality for species
• †Sarmientosaurus – type locality for genus
  • †Sarmientosaurus musacchioi – type locality for species
• †Sassafras
  • †Sassafras acutilobum
• †Sauropodichnus – type locality for genus
• †Sauropodichnus
  • †Sauropodichnus giganteus – type locality for species
  • †Sauropodichnus giganteus
• †Saurosuchus – type locality for genus
• †Saurosuchus
  • †Saurosuchus galilei – type locality for species
  • †Saurosuchus galilei
• †Scaphonyx – tentative report
• †Scaphonyx
  • †Scaphonyx sp.
• †Scenedesmus
  • †Scenedesmus bijuga – or unidentified related form
• †Schinopsis – tentative report
  • †Schinopsis dubia
• †Schizaeoisporites
  • †Schizaeoisporites sp.
• †Schizosporis
  • †Schizosporis sp.informal
• †Schlotheimia
  • †Schlotheimia sp.
  • †Schlotheimia stenorhyncha – or unidentified comparable form
• †Schrankipollis
  • †Schrankipollis kachaikensis – or unidentified comparable form
  • †Schrankipollis kachaikensis
  • †Schrankipollis sp.informal
• †Scleropteris
  • †Scleropteris furcata
  • †Scleropteris sp. 1informal
  • †Scleropteris sp. 2informal
• †Scoyenia
  • †Scoyenia sp.
• †Scriniodinium
  • †Scriniodinium sp.
• †Scurriopsis – tentative report
  • †Scurriopsis sp.
• †Secernosaurus – type locality for genus
• †Secernosaurus
  • †Secernosaurus koerneri – type locality for species
  • †Secernosaurus koerneri
• †Semionotus
  • †Semionotus mendozaensis – type locality for species
  • †Semionotus unicristatus
  • †Semionotus vallejensis – type locality for species
• †Senipites
  • †Senipites sp.
  • †Senipites tercrassata
• †Septifer
  • †Septifer mayai – type locality for species
• †Septocardia – tentative report
• †Septocardia
  • †Septocardia peruviana – tentative report
  • †Septocardia peruviana – or unidentified comparable form
  • †Septocardia sp.
• †Serpula
  • †Serpula sp.
• †Sestrosporites
  • †Sestrosporites pseudoalveolatus
• †Shimmelia – type locality for genus
  • †Shimmelia chirotheroides – type locality for species
• †Sillosuchus – type locality for genus
  • †Sillosuchus longicervix – type locality for species
• †Singhia
  • †Singhia montanaensis
  • †Singhia multicostata
  • †Singhia sp.informal
  • †Singhia sp.
• †Sinuarbullina – tentative report
• †Sinuarbullina
  • †Sinuarbullina melehuensis – type locality for species
  • †Sinuarbullina melehuensis
• †Sinzovia
  • †Sinzovia leanzai
  • †Sinzovia piatnitzkyi
• †Skorpiovenator – type locality for genus
  • †Skorpiovenator bustingorryi – type locality for species
• †Solemya – tentative report
  • †Solemya sp.
• †Solyma
  • †Solyma levis – or unidentified comparable form
  • †Solyma levis
• †Sonninia
  • †Sonninia espinazitensi
  • †Sonninia espinazitensis
• †Soroavisaurus – type locality for genus
  • †Soroavisaurus australis – type locality for species
• †Sotasporites
  • †Sotasporites elegans
  • †Sotasporites sp. Ainformal
• †Sousaichnium
  • †Sousaichnium monettae – type locality for species
• †Sparganiaceaepollenites
  • †Sparganiaceaepollenites barungensis
  • †Sparganiaceaepollenites sp.
• †Sphaerovum – or unidentified comparable form
• †Sphaerovum
  • †Sphaerovum erbeni
• †Sphenobaiera
  • †Sphenobaiera sp. 1informal
  • †Sphenobaiera sp. 2informal
• †Sphenocondor – type locality for genus
  • †Sphenocondor gracilis – type locality for species
• †Sphenopteris – or unidentified comparable form
• †Sphenopteris
  • †Sphenopteris goepperti
  • †Sphenopteris naktongensis – or unidentified comparable form
  • †Sphenopteris patagonica
  • †Sphenopteris psilotoides
  • †Sphenopteris sp.
  • †Sphenopteris sp. 1informal
  • †Sphenopteris sp. 2informal
  • †Sphenopteris sp. 3informal
• †Sphenotitan – type locality for genus
• †Sphenotitan
  • †Sphenotitan leyesi – type locality for species
  • †Sphenotitan leyesi
• †Spiniferites
  • †Spiniferites ramosus
  • †Spiniferites spp.
• †Spinitricolpites
  • †Spinitricolpites sp.
• †Spinizonocolpites
  • †Spinizonocolpites hialinus
  • †Spinizonocolpites sp.informal
  • †Spinizonocolpites sp.
  • †Spinizonocolpites sp. 1informal
• †Spiriferina
  • †Spiriferina sp.
  • †Spiriferina tumida
• †Spiropteris
  • †Spiropteris sp.
  • †Spiropteris sp. 1informal
• †Spiticeras
  • †Spiticeras hauthali
• †Spitidiscus
  • †Spitidiscus kilapiae
  • †Spitidiscus riccardii
  • †Spitidiscus sp.
• †Spondylus
  • †Spondylus sp.
• †Spongodinium
  • †Spongodinium reticulatum
  • †Spongodinium sp.
• †Staplinisporites
  • †Staplinisporites caminus
• †Stauroderma – or unidentified comparable form
  • †Stauroderma sp.
• †Steevesipollenites
  • †Steevesipollenites sp.informal
• †Stehnocephalites
  • †Stehnocephalites crassicostatus
  • †Stehnocephalites gerthi
• †Steinmanella
  • †Steinmanella erycina
  • †Steinmanella pehuenmapuensis
  • †Steinmanella quintucoensis
  • †Steinmanella raimondii
  • †Steinmanella sp.
  • †Steinmanella transitoria – or unidentified comparable form
  • †Steinmanella transitoria
  • †Steinmanella vacaensis
• †Stelidioseris
  • †Stelidioseris sp.
• †Steneosaurus
  • †Steneosaurus gerthi
• †Stenopterygius
  • †Stenopterygius grandis – type locality for species
• †Stephanastrea
  • †Stephanastrea ramulifera
  • †Stephanastrea sp.
• †Stephanocolpites
  • †Stephanocolpites mastandreai
• †Sterculia
  • †Sterculia patagonica
  • †Sterculia platanoides
• †Stereisporites
  • †Stereisporites antiquasporites – or unidentified comparable form
  • †Stereisporites antiquasporites
  • †Stereisporites maastrichtiensis
  • †Stereisporites sp.
  • †Stereisporites sp. Ainformal
• †Stereocaenia
  • †Stereocaenia triboleti
• †Steueroceras
  • †Steueroceras ellipsostomum
  • †Steueroceras incertum
  • †Steueroceras koeneni
  • †Steueroceras rotumdatus
  • †Steueroceras subfasciatum – tentative report
• †Stipanicichnus – type locality for genus
  • †Stipanicichnus bonetti – type locality for species
• †Stolleyiceras
  • †Stolleyiceras desmoceratoides
• †Stoverisporites
  • †Stoverisporites lunaris
• †Striatoconulus
  • †Striatoconulus sp.
• †Striatricolporites
  • †Striatricolporites gamerroi
  • †Striatricolporites sp.
• †Striatriletes
  • †Striatriletes areolatus – type locality for species
  • †Striatriletes areolatus
  • †Striatriletes reticulatus
  • †Striatriletes sulcatus
• †Struthioptera
  • †Struthioptera haastiana – or unidentified comparable form
• †Stylophyllopsis – tentative report
  • †Stylophyllopsis victoriae – or unidentified comparable form
• †Substeueroceras
  • †Substeueroceras sp.
  • †Substeueroceras striolatissimum – or unidentified comparable form
• †Subvinalesphinctes – tentative report
• †Subvinalesphinctes
  • †Subvinalesphinctes prophetae
  • †Subvinalesphinctes pseudokranaus – type locality for species
  • †Subvinalesphinctes pseudokranaus
  • †Subvinalesphinctes sp. Ainformal
• †Sueria – type locality for genus
  • †Sueria rectinervis – type locality for species
• †Sulcusuchus – type locality for genus
• †Sulcusuchus
  • †Sulcusuchus erraini – type locality for species
  • †Sulcusuchus erraini
• †Sutneria
  • †Sutneria sp. Ainformal
• †Syncolporites – tentative report
  • †Syncolporites sp.informal
• †Systematophora
  • †Systematophora sp.
• †Taenidium
  • †Taenidium sp.
• †Taeniopteris
  • †Taeniopteris sp. 1informal
  • †Taeniopteris sp. 2informal
• †Talenkauen – type locality for genus
  • †Talenkauen santacrucensis – type locality for species
• †Tanyosphaeridium
  • †Tanyosphaeridium isocalamum – or unidentified comparable form
  • †Tanyosphaeridium magneticum
  • †Tanyosphaeridium salpinx
  • †Tanyosphaeridium xanthiopyxides
• †Taponichnus – type locality for genus
  • †Taponichnus donottoi – type locality for species
• †Taramelliceras – tentative report
  • †Taramelliceras sp.
• †Tarjadia – type locality for genus
• †Tarjadia
  • †Tarjadia ruthae – type locality for species
  • †Tarjadia ruthae
• †Taurocusporites
  • †Taurocusporites segmentatus
  • †Taurocusporites sp.informal
  • †Taurocusporites sp. 2informal
• †Tauromeniceras
  • †Tauromeniceras sp.informal
• †Taurovenator – type locality for genus
  • †Taurovenator violantei – type locality for species
• †Taxites
  • †Taxites sp. 1informal
• †Tectatodinium
  • †Tectatodinium rugulatum
• †Tehamadinium
  • †Tehamadinium sousensis – or unidentified comparable form
  • †Tehamadinium sp.
• †Tehuelchesaurus – type locality for genus
  • †Tehuelchesaurus benitezii – type locality for species
• †Telemachus
  • †Telemachus sp. 1informal
  • †Telemachus sp. 2informal
• †Telosichnus – type locality for genus
  • †Telosichnus saltensis – type locality for species
• †Tenellisporites
  • †Tenellisporites coronatus – type locality for species
  • †Tenellisporites coronatus
• †Terquemia – tentative report
  • †Terquemia andina – type locality for species
  • †Terquemia andina
• †Tethyoceramus
  • †Tethyoceramus madagascariensis
• †Tetragonites
  • †Tetragonites heterosulcatus
• †Tetrasauropus
  • †Tetrasauropus sp.
• †Thalassinoides
  • †Thalassinoides sp.
• †Thamnasteria
  • †Thamnasteria sp.
• †Thaumatopteris
  • †Thaumatopteris sp. 1informal
• †Thecosmilia
  • †Thecosmilia sp.
• †Therangospodus – or unidentified comparable form
  • †Therangospodus pandemicus
• †Thorhallenia – type locality for genus
• †Thorhallenia
  • †Thorhallenia dentata – type locality for species
  • †Thorhallenia form Ainformal
  • †Thorhallenia form Binformal
• †Thorphyllum – type locality for genus
  • †Thorphyllum patagonica – type locality for species
• †Thracia
  • †Thracia lenticularis
  • †Thracia sp.
• †Thurmania
  • †Thurmania fraudans
• †Thurmanniceras
  • †Thurmanniceras sp.
• †Tipulidites – type locality for genus
  • †Tipulidites affinis – type locality for species
• †Tipuloidea – type locality for genus
  • †Tipuloidea rhaetica – type locality for species
• †Titanopodus – type locality for genus
  • †Titanopodus mendozensis – type locality for species
• †Titanosaurus – tentative report
• †Titanosaurus – report made of unidentified related form or using admittedly obsolete nomenclature
• †Titanosaurus
  • †Titanosaurus nanus – type locality for species
  • †Titanosaurus sp.
• †Todisporites
  • †Todisporites major
  • †Todisporites minor
  • †Todisporites sp.
  • †Todisporites sp. Ainformal
• †Todites
  • †Todites sp. 1informal
• †Tomaxellia
  • †Tomaxellia sp. 1informal
• †Tonohamites
  • †Tonohamites aequicingulatus
• †Torpidoceras
  • †Torpidoceras sp.
• †Torquatisphinctes
  • †Torquatisphinctes mendozanus – or unidentified comparable form
  • †Torquatisphinctes proximus
• †Toxoceratoides – tentative report
• †Toxoceratoides
  • †Toxoceratoides biplex – or unidentified comparable form
  • †Toxoceratoides haughtoni
  • †Toxoceratoides nagerai
  • †Toxoceratoides sp.
• †Trachyleberis
  • †Trachyleberis princeps
• †Trapalcochelys – type locality for genus
  • †Trapalcochelys sulcata – type locality for species
• †Trapalcotherium – type locality for genus
  • †Trapalcotherium matuastensis – type locality for species
• †Traukutitan – type locality for genus
  • †Traukutitan eocaudata – type locality for species
• †Treptichnus
  • †Treptichnus pollardi
• †Trialestes – type locality for genus
• †Trialestes
  • †Trialestes romeri – type locality for species
  • †Trialestes romeri
• †Triasseuryptilon
  • †Triasseuryptilon acostai – type locality for species
• †Triassoblatta – tentative report
• †Triassoblatta
  • †Triassoblatta argentina – type locality for species
  • †Triassoblatta sp.
• †Triassothemis – type locality for genus
  • †Triassothemis mendozensis – type locality for species
• †Triatriopollenites
  • †Triatriopollenites bertelsii
  • †Triatriopollenites lateflexus – or unidentified comparable form
  • †Triatriopollenites lateflexus
  • †Triatriopollenites sp.
  • †Triatriopollenites sp. 1informal
• †Trichites – tentative report
  • †Trichites sp.
• †Trichotomosulcites
  • †Trichotomosulcites microsaccatus
• †Tricolpate
  • †Tricolpate sp.informal
• †Tricolpites
  • †Tricolpites bibaculatus
  • †Tricolpites reticulatus – or unidentified comparable form
  • †Tricolpites reticulatus
  • †Tricolpites sagax – or unidentified comparable form
  • †Tricolpites sp.informal
  • †Tricolpites sp.
  • †Tricolpites sp. 1informal
  • †Tricolpites sp. 2informal
  • †Tricolpites variabilis – or unidentified comparable form
• †Tricolporites
  • †Tricolporites sp. 1informal
• †Tricolporoidites
  • †Tricolporoidites sp.informal
  • †Tricolporoidites sp.
• †Tricotomosulcado
  • †Tricotomosulcado sp.informal
• †Tridigitichnus – type locality for genus
  • †Tridigitichnus inopinatus – type locality for species
• †Trigonia
  • †Trigonia aliexpandita
  • †Trigonia carinata
  • †Trigonia mirandaensis
  • †Trigonia sp.
  • †Trigonia weidmanni
• †Trihennigma – type locality for genus
  • †Trihennigma zavattierii – type locality for species
• †Trileites
  • †Trileites murrayi – or unidentified comparable form
  • †Trileites spp.
• †Trilites
  • †Trilites sp.informal
  • †Trilites sp. 1informal
  • †Trilites volkheimerii
• †Trillus
  • †Trillus elkhornensis
• †Trilobosporites
  • †Trilobosporites purverulentus
  • †Trilobosporites trioreticulosus
• †Trimarginites
  • †Trimarginites eucaris – or unidentified comparable form
  • †Trimarginites eucharis – or unidentified comparable form
• †Triporoletes
  • †Triporoletes asper
  • †Triporoletes reticulatus
• †Triporopollenites
  • †Triporopollenites ambiguus – or unidentified comparable form
  • †Triporopollenites minor
  • †Triporopollenites sp.
• †Trisaccites
  • †Trisaccites microsaccatum
  • †Trisaccites microsaccatus
• †Tropaeum – tentative report
• †Tropaeum
  • †Tropaeum inflatum
  • †Tropaeum sp.
• †Tropidoceras – tentative report
• †Tropidoceras
  • †Tropidoceras atuelense – type locality for species
  • †Tropidoceras atuelense
  • †Tropidoceras demonense – or unidentified related form
  • †Tropidoceras demonense – or unidentified comparable form
  • †Tropidoceras flandrini – or unidentified comparable form
  • †Tropidoceras flandrini
  • †Tropidoceras hamulatum – type locality for species
  • †Tropidoceras hamulatum
  • †Tropidoceras mediterraneum – or unidentified comparable form
  • †Tropidoceras sp.
  • †Tropidoceras zitteliex gr.
  • †Tropidoceras zitteli – or unidentified comparable form
• †Tropidosuchus – type locality for genus
• †Tropidosuchus
  • †Tropidosuchus romeri – type locality for species
  • †Tropidosuchus romeri
• †Tuarangisaurus
  • †Tuarangisaurus cabazai – type locality for species
• †Tuberculatosporites
  • †Tuberculatosporites parvus
  • †Tuberculatosporites sp. Ainformal
• †Tuberosciponoceras – type locality for genus
• †Tuberosciponoceras
  • †Tuberosciponoceras insolitum – type locality for species
  • †Tuberosciponoceras insolitum
• †Tubulifloridites
  • †Tubulifloridites lilliei
• †Turritella
  • †Turritella lineolata – or unidentified related form
  • †Turritella malaspina
• †Tutcheria
  • †Tutcheria densestriata – or unidentified related form
• †Tylostoma
  • †Tylostoma jaworskii
• †Typothorax
  • †Typothorax punctulatus – type locality for species
• †Tyrannotitan – type locality for genus
• †Tyrannotitan – or unidentified comparable form
• †Tyrannotitan
  • †Tyrannotitan chubutensis – type locality for species
  • †Tyrannotitan chubutensis
  • †Tyrannotitan sp.
• †Uhligella – tentative report
  • †Uhligella sp. ainformal
• †Umsinenoceras
  • †Umsinenoceras cardielense – type locality for species
• †Unenlagia – type locality for genus
• †Unenlagia
  • †Unenlagia comahuensis – type locality for species
  • †Unenlagia paynemili – type locality for species
• †Unquillosaurus – type locality for genus
  • †Unquillosaurus ceibalii – type locality for species
• †Uptonia
  • †Uptonia sp.
• †Vallizonosporites
  • †Vallizonosporites spinosus
• †Vaugonia
  • †Vaugonia sp.
• †Velocisaurus – type locality for genus
• †Velocisaurus
  • †Velocisaurus unicus – type locality for species
  • †Velocisaurus unicus
• †Venaticosuchus – type locality for genus
  • †Venaticosuchus rusconii – type locality for species
• †Venericardia
  • †Venericardia burmeisteri
  • †Venericardia iheringi
  • †Venericardia sp.
• †Veniella
  • †Veniella pampaensis
• †Veranadaites
  • †Veranadaites palmicostatus – type locality for species
  • †Veranadaites palmicostatus
• †Vermiceras
  • †Vermiceras coregonense – or unidentified comparable form
  • †Vermiceras gracile – or unidentified comparable form
  • †Vermiceras rursicostatum – or unidentified comparable form
  • †Vermiceras sp.
  • †Vermiceras spp.
• †Verrucosisporites
  • †Verrucosisporites sp.
  • †Verrucosisporites sp. 1informal
  • †Verrucosisporites sp. Ainformal
  • †Verrucosisporites sp. Einformal
  • †Verrucosisporites varians – or unidentified comparable form
• †Verrutricolpites
  • †Verrutricolpites sp.informal
  • †Verrutricolpites sp.
• †Verrutriletes
  • †Verrutriletes tomtaylori
• †Viavenator – type locality for genus
  • †Viavenator exxoni – type locality for species
• †Vinalesphinctes
  • †Vinalesphinctes – type locality for species Ainformal
• †Vincelestes – type locality for genus
  • †Vincelestes neuquenianus – type locality for species
• †Vinceria – type locality for genus
• †Vinceria
  • †Vinceria andina – type locality for species
  • †Vinceria argentinensis – type locality for species
  • †Vinceria vieja – type locality for species
  • †Vinceria vieja
• †Vitreisporites
  • †Vitreisporites pallidus
• †Volanoceras
  • †Volanoceras sp.
• †Volkheimeria – type locality for genus
  • †Volkheimeria chubutensis – type locality for species
• †Waehneroceras
  • †Waehneroceras longipontinum – or unidentified comparable form
• †Walkeripollis
  • †Walkeripollis sp.informal
  • †Walkeripollis sp.
• †Walkomia
  • †Walkomia sp. 1informal
• †Waltzispora
  • †Waltzispora sp. Ainformal
• †Wargosuchus – type locality for genus
  • †Wargosuchus australis – type locality for species
• †Weavericeras
  • †Weavericeras vacaense
• †Wenupteryx – type locality for genus
• †Wenupteryx
  • †Wenupteryx uzi – type locality for species
  • †Wenupteryx uzi
• †Weyla
  • †Weyla alata
  • †Weyla bodenbenderi
  • †Weyla bondenbenderi
  • †Weyla mexicana – tentative report
  • †Weyla sp.
  • †Weyla unca
• †Wichmannella
  • †Wichmannella araucana
  • †Wichmannella cretacea – type locality for species
• †Wildeichnus – type locality for genus
  • †Wildeichnus navesi – type locality for species
• †Williamsonia
  • †Williamsonia sp. 1informal
• †Willinakaqe – type locality for genus
  • †Willinakaqe salitralensis – type locality for species
• †Windhauseniceras
  • †Windhauseniceras sp.
• †Worsdellia
  • †Worsdellia bonettiae
• †Xanthilites – tentative report
  • †Xanthilites gerthi
• †Xenocephalites
  • †Xenocephalites araucanus – or unidentified comparable form
  • †Xenocephalites gottschei
  • †Xenocephalites neuquensis – or unidentified related form
  • †Xenocephalites neuquensis
  • †Xenocephalites sp.
  • †Xenocephalites sp. Ainformal
  • †Xenocephalites stipanicici
• †Xenopus – or unidentified comparable form
  • †Xenopus sp.
• †Xenotarsosaurus – type locality for genus
  • †Xenotarsosaurus bonapartei – type locality for species
• †Xylopteris
  • †Xylopteris sp. 1informal
  • †Xylopteris sp. 2informal
• †Yabeiella
  • †Yabeiella sp. 1informal
  • †Yabeiella sp. 2informal
  • †Yabeiella sp. 3informal
  • †Yabeiella sp. 4informal
• †Yacoraitichnus – type locality for genus
  • †Yacoraitichnus avis – type locality for species
• †Yaminuechelys – type locality for genus
• †Yaminuechelys
  • †Yaminuechelys gasparinii – type locality for species
  • †Yaminuechelys gasparinii – or unidentified comparable form
  • †Yaminuechelys gasparinii
  • †Yaminuechelys maior – or unidentified related form
• †Yungavolucris – type locality for genus
  • †Yungavolucris brevipedalis – type locality for species
• †Yurigocimex – type locality for genus
  • †Yurigocimex popovi – type locality for species
• †Zamites
  • †Zamites sp. 1informal
• †Zapalasaurus – type locality for genus
• †Zapalasaurus – or unidentified comparable form
  • †Zapalasaurus bonapartei – type locality for species
  • †Zapalasaurus sp.
• †Zapalia
  • †Zapalia fascipartita
  • †Zapalia sp.
• †Zetoceras
  • †Zetoceras iudicariense – or unidentified comparable form
• †Zoophycos
  • †Zoophycos sp.
• †Zuberia – tentative report
• †Zuberia
  • †Zuberia barrealensis
  • †Zuberia feistmanteli
  • †Zuberia sahnii
  • †Zuberia sp. 1informal
  • †Zuberia sp. 2informal
  • †Zuberia zuberi – or unidentified comparable form
  • †Zuberia zuberi
• †Zugmayerella – tentative report
  • †Zugmayerella koerneri – or unidentified comparable form
• †Zupaysaurus – type locality for genus
  • †Zupaysaurus rougieri – type locality for species
• †Zygadenia
  • †Zygadenia sp. 1informal

Cenozoic

• †Abderites
  • †Abderites meridionalis
  • †Abderites sp.
• †Abertella
  • †Abertella gualichensis – type locality for species
  • †Abertella gualichensis
  • †Abertella sp.
• †Abrocoma
  • †Abrocoma antiqua – or unidentified comparable form
  • †Abrocoma sp.
• †Abrothrix
  • †Abrothrix illuteus
  • †Abrothrix magnus
• †Acaciapollenites
  • †Acaciapollenites acaciae – type locality for species
  • †Acaciapollenites myriosporites
• †Acacioxylon
  • †Acacioxylon odonellii – type locality for species
• †Acaena
  • †Acaena brandmayri
  • †Acaena sp.
  • †Acaena spp.
• †Acamana – type locality for genus
  • †Acamana ambiguus – type locality for species
• †Acantharodeia
  • †Acantharodeia sp.
• †Acanthina
  • †Acanthina imbricata
  • †Acanthina monodon
• †Acanthocephalonotum – type locality for genus
  • †Acanthocephalonotum martinsnetoi – type locality for species
• †Acarechimys
  • †Acarechimys leucotheae – type locality for species
  • †Acarechimys minutissimus – or unidentified comparable form
  • †Acarechimys minutissimus
  • †Acarechimys sp.
• †Acaremys
  • †Acaremys major – type locality for species
  • †Acaremys messor – type locality for species
  • †Acaremys murinus – type locality for species
  • †Acaremys murinus – or unidentified comparable form
  • †Acaremys murinus
  • †Acaremys preminutus – type locality for species
  • †Acaremys sp.
  • †Acaremys tricarinatus – type locality for species
  • †Acaremys tricarinatus
• †Acdestis
  • †Acdestis lemairei
  • †Acdestis oweni
• †Acesta
  • †Acesta excavata
  • †Acesta latens – or unidentified comparable form
  • †Acesta snowhillensis
  • †Acesta sp.
• †Achradosporis
  • †Achradosporis lurensis – type locality for species
  • †Achradosporis lurensis
  • †Achradosporis sp.
• †Acirsa – or unidentified related form
  • †Acirsa parvicostata
• †Acmopyle
  • †Acmopyle engelhardti
• †Acoelodus – report made of unidentified related form or using admittedly obsolete nomenclature
• †Acoelodus
  • †Acoelodus debilitatus – type locality for species
  • †Acoelodus oppositus – type locality for species
  • †Acoelodus proclivus – type locality for species
  • †Acoelodus terminalis – type locality for species
• †Acoelohyrax – type locality for genus
• †Acoelohyrax
  • †Acoelohyrax coalitus – type locality for species
  • †Acoelohyrax coarctatus – type locality for species
  • †Acoelohyrax complicatissimus – type locality for species
  • †Acoelohyrax coronatus – type locality for species
  • †Acoelohyrax sigma – type locality for species
• †Acrocyon – or unidentified comparable form
• †Acrocyon
  • †Acrocyon riggsi – type locality for species
  • †Acrocyon riggsi
  • †Acrocyon sectorius
• †Acrodiclidium
  • †Acrodiclidium oligocaenicum
• †Acropithecus
  • †Acropithecus rigidus – type locality for species
  • †Acropithecus rigidus – tentative report
  • †Acropithecus rigidus
• †Actaeon
  • †Actaeon argentinus
• †Actenomys
  • †Actenomys latidens
  • †Actenomys priscus
  • †Actenomys sp.
• †Acteocina
  • †Acteocina piramidesia
• †Acteon – report made of unidentified related form or using admittedly obsolete nomenclature
• †Acteon
  • †Acteon bajoensis
  • †Acteon chilensis
  • †Acteon semilaevis
• †Acyon – type locality for genus
• †Acyon
  • †Acyon tricuspidatus – type locality for species
  • †Acyon tricuspidatus
• †Adelomedon
  • †Adelomedon brasiliensis
  • †Adelomedon sp.
• †Adelomelon
  • †Adelomelon alta
  • †Adelomelon ancilla
  • †Adelomelon beckii
  • †Adelomelon burmeisteri
  • †Adelomelon cannada
  • †Adelomelon ferussacii
  • †Adelomelon posei
• †Adelphomys
  • †Adelphomys candidus
• †Adenocalymma
  • †Adenocalymma tertiaria – type locality for species
• †Adianthus – type locality for genus
  • †Adianthus bucatus – type locality for species
• †Adiantoides – type locality for genus
• †Adiantoides
  • †Adiantoides leali – type locality for species
  • †Adiantoides magnus – type locality for species
• †Adiantum
  • †Adiantum patagonicum – type locality for species
• †Adiastaltus – type locality for genus
• †Adiastaltus
  • †Adiastaltus habilis – type locality for species
  • †Adiastaltus habilis
  • †Adiastaltus procerus – type locality for species
• †Adinotherium – tentative report
• †Adinotherium
  • †Adinotherium ferum – type locality for species
  • †Adinotherium ferum
  • †Adinotherium ovinum
  • †Adinotherium paranense
  • †Adinotherium robustum
  • †Adinotherium sp.
• †Admete
  • †Admete ameghinoi
• †Aeneator
  • †Aeneator annae
• †Aenigmys – type locality for genus
  • †Aenigmys diamantensis – type locality for species
• †Aequipecten
  • †Aequipecten insuetus – type locality for species
  • †Aequipecten paraensis
  • †Aequipecten paranensis
  • †Aequipecten tehuelchus
• †Aequitriradites
  • †Aequitriradites spinulosus
• †Agathis
  • †Agathis zamunerae
• †Agathistoma
  • †Agathistoma patagonicum
• †Agathoxylon
  • †Agathoxylon sp.
• †Aglaocetus
  • †Aglaocetus moreni – type locality for species
  • †Aglaocetus moreni
• †Ailanthipites
  • †Ailanthipites sp.
  • †Ailanthipites sp. Ainformal
• †Akania
  • †Akania patagonica
  • †Akania sp.
• †Akodon
  • †Akodon azarae – or unidentified comparable form
  • †Akodon azarae
  • †Akodon iniscatus – or unidentified comparable form
  • †Akodon sp.
• †Alaripeda – or unidentified comparable form
  • †Alaripeda sp.
• †Albertipollenites
  • †Albertipollenites anguloluminosus
• †Albertogaudrya – type locality for genus
• †Albertogaudrya – tentative report
• †Albertogaudrya
  • †Albertogaudrya carahuasensis
  • †Albertogaudrya sp.
  • †Albertogaudrya unica – type locality for species
  • †Albertogaudrya unica
• †Allalmeia – type locality for genus
  • †Allalmeia atalaensis – type locality for species
• †Allamanda
  • †Allamanda crassostipitata
• †Allognathosuchus – or unidentified related form
  • †Allognathosuchus sp.
• †Alloiomys
  • †Alloiomys sp.
• †Allophyllus
  • †Allophyllus eduliformis – tentative report
  • †Allophyllus eduliformis
  • †Allophyllus graciliformis
• †Allophylus – or unidentified comparable form
  • †Allophylus eduliformis
• †Alnipollenites
  • †Alnipollenites verus
• †Alsophila
  • †Alsophila antarctica
• †Alsophilocaulis
  • †Alsophilocaulis calveloi – type locality for species
  • †Alsophilocaulis calveloi
• †Ameghinomya
  • †Ameghinomya antiqua
  • †Ameghinomya meridonalis
• †Amilnedwardsia
  • †Amilnedwardsia brevicula – type locality for species
• †Ampelodaphne
  • †Ampelodaphne grandifolia
• †Amphidolops – type locality for genus
• †Amphidolops
  • †Amphidolops serrula – type locality for species
  • †Amphidolops serrula
  • †Amphidolops sp. nov. 1informal
  • †Amphidolops sp. nov. 2informal
  • †Amphidolops yapa – type locality for species
• †Amphiocnus
  • †Amphiocnus paranense
• †Amplaster
  • †Amplaster sp.
• †Ampullina
  • †Ampullina australis
  • †Ampullina dubia
• †Amusium
  • †Amusium darwinianum
  • †Amusium paris – type locality for species
  • †Amusium paris
  • †Amusium rorii
• †Anacardites – tentative report
• †Anacardites
  • †Anacardites brittoni – type locality for species
  • †Anacardites patagonicus – type locality for species
  • †Anacardites pichileufensis – type locality for species
• †Anacolosidites
  • †Anacolosidites diffusa – type locality for species
  • †Anacolosidites diffusa
• †Anadara
  • †Anadara australis
  • †Anadara bonplandiana
  • †Anadara bravardi
  • †Anadara lirata
  • †Anadara panensis
• †Anagonia – type locality for genus
  • †Anagonia insulata – type locality for species
• †Anantiosodon
  • †Anantiosodon rarus
• †Anargyrolagus – type locality for genus
  • †Anargyrolagus primus – type locality for species
• †Anas – or unidentified comparable form
• †Anas
  • †Anas platalea – or unidentified comparable form
  • †Anas sp.
• †Anathitus – type locality for genus
  • †Anathitus revelator – type locality for species
• †Anatochoerus
  • †Anatochoerus sp.
• †Anatolinites
  • †Anatolinites spp.
• †Ancylocoelus
  • †Ancylocoelus frequens – type locality for species
  • †Ancylocoelus frequens
  • †Ancylocoelus minor – type locality for species
• †Andalgalornis
  • †Andalgalornis sp.
• †Andinomys
  • †Andinomys edax
• †Andrewsornis – or unidentified comparable form
  • †Andrewsornis sp.
• †Angelocabrerus – type locality for genus
  • †Angelocabrerus daptes – type locality for species
• †Anisolambda
  • †Anisolambda amel – type locality for species
  • †Anisolambda amel
  • †Anisolambda fissidens – type locality for species
  • †Anisolambda fissidens
  • †Anisolambda nodulosa – type locality for species
  • †Anisolambda sp.
• †Anisolornis
  • †Anisolornis excavatus
• †Anisorhizus – type locality for genus
  • †Anisorhizus atriarius – type locality for species
• †Anisotemnus
  • †Anisotemnus distentus – type locality for species
  • †Anisotemnus distentus
• †Annulispora
  • †Annulispora folliculosa
• †Anomalocardia
  • †Anomalocardia enterriana
  • †Anomalocardia entrerriana
• †Anomia
  • †Anomia pileata
  • †Anomia sp.
• †Anona
  • †Anona infestans – type locality for species
• †Antalis
  • †Antalis dodecacostatum
  • †Antalis flechensis
• †Antarctodarwinella
  • †Antarctodarwinella iheringi
• †Antepithecus
  • †Antepithecus brachystephanus – type locality for species
  • †Antepithecus brachystephanus – tentative report
  • †Antepithecus brachystephanus
  • †Antepithecus innexus – type locality for species
  • †Antepithecus sp.
• †Anthicus
  • †Anthicus sepultulus – type locality for species
• †Anthocerisporis
  • †Anthocerisporis gandolfii
• †Anthoceros
  • †Anthoceros spp.
• †Anthocerotofitas
  • †Anthocerotofitas sp.
• †Anthonomus – tentative report
  • †Anthonomus sunchalensis
• †Antifer
  • †Antifer crassus – type locality for species
• †Antimelatoma
  • †Antimelatoma cuevensis
  • †Antimelatoma quemadensis
• †Antofagastia – type locality for genus
• †Antofagastia – or unidentified comparable form
  • †Antofagastia sp.
  • †Antofagastia turneri – type locality for species
• †Antulsporites
  • †Antulsporites clavus
• †Aphrodina
  • †Aphrodina burckhardti
  • †Aphrodina wilckensi
• †Apiculatisporites
  • †Apiculatisporites charahuillaensis – or unidentified comparable form
• †Apocynophyllum
  • †Apocynophyllum chalianum – type locality for species
• †Apterodytes
  • †Apterodytes ictus
• †Araloselachus
  • †Araloselachus cuspidata
• †Araucaria
  • †Araucaria marensii
  • †Araucaria nathorsti
  • †Araucaria pichileufensis – type locality for species
  • †Araucaria pichileufensis
  • †Araucaria sp.
  • †Araucaria TY0013informal
  • †Araucaria TY013informal
  • †Araucaria TY014informal
• †Araucariacites
  • †Araucariacites australis
  • †Araucariacites sp.
• †Arca
  • †Arca obliqua
  • †Arca particularis – type locality for species
  • †Arca patagonica
  • †Arca puntaensis
  • †Arca sp.
  • †Arca strangulata
• †Archaeohyracotherium
  • †Archaeohyracotherium mediale – type locality for species
• †Archaeohyrax – type locality for genus
• †Archaeohyrax – tentative report
• †Archaeohyrax
  • †Archaeohyrax patagonicus – type locality for species
  • †Archaeohyrax patagonicus
  • †Archaeohyrax sp.
  • †Archaeohyrax suniensis
• †Archaeophylus – type locality for genus
• †Archaeophylus
  • †Archaeophylus patrius – type locality for species
  • †Archaeophylus patrius
• †Archaeopithecus – type locality for genus
• †Archaeopithecus
  • †Archaeopithecus fossulatus – type locality for species
  • †Archaeopithecus rogeri – type locality for species
  • †Archaeopithecus rogeri – or unidentified comparable form
• †Archaeoplus – type locality for genus
  • †Archaeoplus incipiens – type locality for species
• †Archaeorycteropus
  • †Archaeorycteropus patagonicus – type locality for species
• †Archaeotypotherium – or unidentified comparable form
• †Archaeotypotherium
  • †Archaeotypotherium propheticus
  • †Archaeotypotherium sp.
• †Archaeutatus
  • †Archaeutatus malaspinensis – or unidentified related form
  • †Archaeutatus malaspinensis
  • †Archaeutatus sp.
  • †Archaeutatus sp. nov.informal
• †Archimyrmex – type locality for genus
  • †Archimyrmex piatnitzkyi – type locality for species
  • †Archimyrmex smekali – type locality for species
• †Arcomytilus
  • †Arcomytilus primigenius – or unidentified comparable form
• †Arctocephalus
  • †Arctocephalus sp.
• †Arctodictis – type locality for genus
• †Arctodictis – or unidentified comparable form
• †Arctodictis
  • †Arctodictis munizi – type locality for species
  • †Arctodictis munizi
  • †Arctodictis sinclairi
  • †Arctodictis sp.
• †Arctotherium
  • †Arctotherium sp.
• †Ardisia
  • †Ardisia crassifolia
• †Arecipites
  • †Arecipites asymmetricus
  • †Arecipites minutiscabratus – or unidentified comparable form
  • †Arecipites minutiscabratus
  • †Arecipites sp.
  • †Arecipites subverrucatus
• †Argentavis – type locality for genus
• †Argentavis
  • †Argentavis magnificens – type locality for species
  • †Argentavis magnificens
• †Argopecten
  • †Argopecten gratus – type locality for species
  • †Argopecten insuetus – type locality for species
  • †Argopecten insuetus
• †Argyrocetus – type locality for genus
  • †Argyrocetus patagonicus – type locality for species
• †Argyrohippus
  • †Argyrohippus boulei – or unidentified comparable form
• †Argyrohyrax – type locality for genus
• †Argyrohyrax
  • †Argyrohyrax proavus – type locality for species
  • †Argyrohyrax proavus
  • †Argyrohyrax sp.
• †Argyrolagus
  • †Argyrolagus palmeri
• †Argyrolambda – type locality for genus
  • †Argyrolambda conidens – type locality for species
• †Argyrolestes – type locality for genus
  • †Argyrolestes peralestinus – type locality for species
• †Argyromanis – type locality for genus
  • †Argyromanis patagonicus – type locality for species
• †Arminiheringia – type locality for genus
• †Arminiheringia
  • †Arminiheringia auceta – type locality for species
  • †Arminiheringia auceta – tentative report
  • †Arminiheringia sp.
• †Arrabidaea
  • †Arrabidaea patagonica – type locality for species
• †Arrhoges
  • †Arrhoges gregaria
• †Arthrodytes
  • †Arthrodytes andrewsi
  • †Arthrodytes sp.
• †Asmithwoodwardia – type locality for genus
• †Asmithwoodwardia
  • †Asmithwoodwardia sp.
  • †Asmithwoodwardia sp. nov.informal
  • †Asmithwoodwardia subtrigona – type locality for species
  • †Asmithwoodwardia subtrigona – or unidentified comparable form
  • †Asmithwoodwardia subtrigona
• †Asmodeus
  • †Asmodeus circumflexus – type locality for species
  • †Asmodeus osborni
  • †Asmodeus petrasnerus – type locality for species
• †Aspidocalyptus
  • †Aspidocalyptus castroi
  • †Aspidocalyptus sp.
• †Asplenium
  • †Asplenium incertum – type locality for species
• †Astarte
  • †Astarte venatorum – or unidentified comparable form
  • †Astarte venatorum
• †Astegotherium – type locality for genus
• †Astegotherium – or unidentified comparable form
• †Astegotherium
  • †Astegotherium dichotomum – type locality for species
  • †Astegotherium sp.
• †Asteracarpus – type locality for genus
  • †Asteracarpus gomezbelloi – type locality for species
• †Asterias
  • †Asterias dugratii
• †Asteromys – type locality for genus
• †Asteromys – tentative report
• †Asteromys
  • †Asteromys punctus – type locality for species
  • †Asteromys punctus
• †Asterostemma – or unidentified comparable form
  • †Asterostemma depressa
• †Asthenognathus
  • †Asthenognathus microspinus – type locality for species
  • †Asthenognathus sp.
• †Astraponotus – type locality for genus
• †Astraponotus
  • †Astraponotus assymmetrus – type locality for species
  • †Astraponotus dicksoni – type locality for species
  • †Astraponotus dilatatus – type locality for species
  • †Astraponotus holdichi – type locality for species
  • †Astraponotus thompsoni – type locality for species
• †Astrapothericulus
  • †Astrapothericulus sp.
• †Astrapotherium – tentative report
• †Astrapotherium – or unidentified comparable form
• †Astrapotherium
  • †Astrapotherium magnum
  • †Astrapotherium ruderarium – type locality for species
  • †Astrapotherium sp.
• †Astronium
  • †Astronium argentinum – type locality for species
• †Astroniumxylon
  • †Astroniumxylon parabalansae – type locality for species
• †Atalophlebia – tentative report
  • †Atalophlebia sp. Ainformal
• †Ataxocerithium
  • †Ataxocerithium juliana
  • †Ataxocerithium pardelensis
  • †Ataxocerithium piramidensis
  • †Ataxocerithium trespunta
• †Atherospermophyllum – report made of unidentified related form or using admittedly obsolete nomenclature
• †Atherospermophyllum
  • †Atherospermophyllum guinazui
• †Atrina
  • †Atrina magellanica
  • †Atrina rioturbiensis – type locality for species
  • †Atrina rioturbiensis – or unidentified comparable form
  • †Atrina sp. – tentative report
  • †Atrina sp.
• †Aturia
  • †Aturia caroliameghinoi
• †Aulacomya – tentative report
• †Aulacomya
  • †Aulacomya atra – or unidentified comparable form
  • †Aulacomya atra
  • †Aulacomya sp.
• †Auliscomys
  • †Auliscomys formosus
• †Aulophyseter
  • †Aulophyseter rionegrensis – type locality for species
• †Australohyaena
  • †Australohyaena antiqua – type locality for species
  • †Australohyaena antiqua
• †Australoneilo – tentative report
• †Australoneilo
  • †Australoneilo gracilis
  • †Australoneilo sp.
• †Australoprocta – type locality for genus
• †Australoprocta
  • †Australoprocta fleaglei – type locality for species
  • †Australoprocta fleaglei
• †Austrocallista
  • †Austrocallista iheringi
  • †Austrocallista iheringii
• †Austrocominella
  • †Austrocominella fueguensis
  • †Austrocominella sp.
• †Austroimbricaria
  • †Austroimbricaria brugnii
  • †Austroimbricaria gracilior
  • †Austroimbricaria gracilor
  • †Austroimbricaria quemadensis
• †Austrolibellula – type locality for genus
  • †Austrolibellula noroestenia – type locality for species
• †Austromitra
  • †Austromitra patagonica – tentative report
  • †Austromitra patagonica
• †Austropanorpodes – type locality for genus
  • †Austropanorpodes gennaken – type locality for species
• †Austroperilestes – type locality for genus
  • †Austroperilestes hunco – type locality for species
• †Austrosphaera
  • †Austrosphaera patagonica
• †Austrotoma
  • †Austrotoma cuevensis
• †Ayllusuchus – type locality for genus
  • †Ayllusuchus fernandezi – type locality for species
• †Azara
  • †Azara celastriniforma – type locality for species
  • †Azara celastriniformis
  • †Azara tertiartia
• †Azolla
  • †Azolla sp.
  • †Azolla TY004informal
• †Azollopsis
  • †Azollopsis intermedia
  • †Azollopsis tomentosa
  • †Azollopsis tormentosa
• †Azorella
  • †Azorella spp.
• †Bachmannia – type locality for genus
  • †Bachmannia chubutensis – type locality for species
• †Baculatisporites
  • †Baculatisporites comaumensis
  • †Baculatisporites sp.
  • †Baculatisporites turbioensis – type locality for species
  • †Baculatisporites turbioensis
• †Badiostes
  • †Badiostes patagonicus
• †Baibiancarpus – type locality for genus
  • †Baibiancarpus chubutensis – type locality for species
• †Balaena
  • †Balaena dubia
  • †Balaena pampaea – type locality for species
• †Balaenoptera – or unidentified comparable form
  • †Balaenoptera sp.
• †Balanus
  • †Balanus foliatus
  • †Balanus psittacus
  • †Balanus sp.sensu lato
  • †Balanus sp.
  • †Balanus subconicus
  • †Balanus varians
• †Balcis
  • †Balcis flechensis
• †Banara – report made of unidentified related form or using admittedly obsolete nomenclature
• †Banara – or unidentified comparable form
• †Banara
  • †Banara cuadrae
  • †Banara prehernandiensis – type locality for species
  • †Banara prehernandiensis
• †Banaraphyllum – type locality for genus
• †Banaraphyllum
  • †Banaraphyllum ovatum – type locality for species
  • †Banaraphyllum ovatum
• †Banderomys
  • †Banderomys leanzai – type locality for species
  • †Banderomys leanzai
• †Banisteria
  • †Banisteria patagonica – type locality for species
• †Barbatia
  • †Barbatia juliana
  • †Barbatia juliania
  • †Barbatia sp.
• †Bardalestes – type locality for genus
• †Bardalestes
  • †Bardalestes hunco – type locality for species
  • †Bardalestes sp.
• †Baricarcinus – type locality for genus
  • †Baricarcinus mariae – type locality for species
• †Barinasuchus
  • †Barinasuchus sp.
• †Barnea
  • †Barnea paucispina
• †Barrancatatus – tentative report
• †Barrancatatus
  • †Barrancatatus maddeni – type locality for species
  • †Barrancatatus rigidus – type locality for species
  • †Barrancatatus rigidus
  • †Barrancatatus sp.
• †Bathelia
  • †Bathelia candida
• †Baumannipollis
  • †Baumannipollis chubutensis
  • †Baumannipollis sp.
  • †Baumannipollis sp. 1informal
  • †Baumannipollis sp. 2informal
  • †Baumannipollis spp.
  • †Baumannipollis variaperturatus
• †Beaupreaidites – or unidentified comparable form
  • †Beaupreaidites sp.
• †Bellaspira
  • †Bellaspira sp.
• †Berardius
  • †Berardius arnuxii
• †Berberis – or unidentified related form
• †Berberis
  • †Berberis corymbosifolia – type locality for species
  • †Berberis sp.
• †Berroia – tentative report
  • †Berroia sp.
• †Berthawyleria
  • †Berthawyleria sp.
• †Biantholithus
  • †Biantholithus sparsus
• †Bicorbula
  • †Bicorbula sp.
• †Bignonia
  • †Bignonia pichileufuana – type locality for species
• †Bignonites
  • †Bignonites chalianus – type locality for species
  • †Bignonites ovatus – type locality for species
• †Biomphalaria
  • †Biomphalaria sp.
• †Biretisporites
  • †Biretisporites crassilabratus – type locality for species
  • †Biretisporites crassilabratus
  • †Biretisporites potoniaei
  • †Biretisporites sp.
  • †Biretisporites sp. 1informal
  • †Biretisporites sp. Ainformal
  • †Biretisporites sp. Binformal
  • †Biretisporites sp. Iinformal
  • †Biretisporites sp. IIIinformal
• †Biscutum
  • †Biscutum sp.
• †Blastocerus
  • †Blastocerus sp.
• †Blastoconus – type locality for genus
  • †Blastoconus robertsoni – type locality for species
• †Blechnum
  • †Blechnum sp.
  • †Blechnum turbioense
• †Boa – tentative report
• †Boa
  • †Boa constrictor
  • †Boa sp.
• †Bobbschaefferia
  • †Bobbschaefferia sp.
• †Bolomys
  • †Bolomys obscurus
• †Bombacacidites
  • †Bombacacidites isoreticulatus – or unidentified comparable form
  • †Bombacacidites sp. 1informal
• †Bombax
  • †Bombax sp.
• †Bonapartherium – type locality for genus
• †Bonapartherium
  • †Bonapartherium hinakusijum – type locality for species
  • †Bonapartherium serrensis – type locality for species
• †Boreastylops – type locality for genus
• †Boreastylops
  • †Boreastylops lumbrerensis – type locality for species
  • †Boreastylops lumbrerensis
• †Borhyaena
  • †Borhyaena macrodonta – type locality for species
  • †Borhyaena macrodonta
  • †Borhyaena tuberata – type locality for species
  • †Borhyaena tuberata
• †Borhyaenidium – type locality for genus
• †Borhyaenidium – or unidentified comparable form
• †Borhyaenidium
  • †Borhyaenidium musteloides – type locality for species
  • †Borhyaenidium riggsi – type locality for species
  • †Borhyaenidium sp.
• †Bororoa – type locality for genus
• †Bororoa
  • †Bororoa andreisii
  • †Bororoa anzulovichii – type locality for species
• †Borsonia
  • †Borsonia patagonica
• †Bos
  • †Bos taurus
• †Bostrycapulus
  • †Bostrycapulus aculeatus
• †Bothrophoria
  • †Bothrophoria compressa – type locality for species
• †Botrychium – or unidentified related form
  • †Botrychium sp.
• †Botryococcus
  • †Botryococcus braunii
  • †Botryococcus sp.
  • †Botryococcus sp. 1informal
  • †Botryococcus sp. 2informal
  • †Botryococcus sp. 3informal
  • †Botryococcus sp. 4informal
• †Bouchardia
  • †Bouchardia zitteli
  • †Bouchardia zittelli
• †Brachidontes
  • †Brachidontes ortmanni
  • †Brachidontes purpuratus
  • †Brachidontes rodriguezi
  • †Brachidontes sp.
• †Brachystephanus – type locality for genus
  • †Brachystephanus postremus – type locality for species
• †Brachytherium
  • †Brachytherium cuspidatum
  • †Brachytherium laternarium
• †Bradysia
  • †Bradysia aliciae – type locality for species
• †Brandmayria
  • †Brandmayria simpsoni
• †Branisamyopsis
  • †Branisamyopsis australis
  • †Branisamyopsis praesigmoides – type locality for species
  • †Branisamyopsis praesigmoides
• †Bredeliapollis – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Bredeliapollis sp.
• †Bretesuchus – type locality for genus
  • †Bretesuchus bonapartei – type locality for species
• †Briaromys
  • †Briaromys sp.
• †Bridelioxylon
  • †Bridelioxylon americanum – type locality for species
• †Brigantedinium
  • †Brigantedinium sp.
• †Brisaster
  • †Brisaster sp.
• †Brontornis – type locality for genus
• †Brontornis
  • †Brontornis burmeisteri – type locality for species
  • †Brontornis burmeisteri
• †Bryanpattersonia – type locality for genus
• †Bryanpattersonia
  • †Bryanpattersonia nesodontoides – type locality for species
  • †Bryanpattersonia sulcidens – type locality for species
  • †Bryanpattersonia sulcidens
• †Buccinulum
  • †Buccinulum agnesia – or unidentified related form
• †Buettneria
  • †Buettneria asterotrichaformis – tentative report
  • †Buettneria asterotrichiformis – type locality for species
  • †Buettneria lanceolatifolia – type locality for species
• †Bulbus
  • †Bulbus sp.
• †Bulimus
  • †Bulimus lutescens
• †Bulinella
  • †Bulinella juliana
• †Bulla
  • †Bulla sp.
• †Bullia
  • †Bullia globulosus
  • †Bullia paytensis
  • †Bullia sp.
• †Bumelia
  • †Bumelia australis – type locality for species
• †Caesalpinioxylon
  • †Caesalpinioxylon sp.
• †Caiman
  • †Caiman australis
  • †Caiman gasparinae – type locality for species
  • †Caiman jacare
  • †Caiman latirostris – or unidentified comparable form
  • †Caiman latirostris
  • †Caiman lutescens – type locality for species
  • †Caiman paranensis – type locality for species
  • †Caiman praecursor – type locality for species
  • †Caiman sp.
  • †Caiman yacare – or unidentified comparable form
• †Calchaquitherium – type locality for genus
  • †Calchaquitherium mixtum – type locality for species
• †Callialasporites
  • †Callialasporites trilobatus
• †Callianassa
  • †Callianassa burckhardi
  • †Callianassa burckhardti
• †Callianopsis
  • †Callianopsis australis – type locality for species
• †Callichthys
  • †Callichthys callichthys
• †Calliostoma
  • †Calliostoma ameghinoi
  • †Calliostoma argentinum
  • †Calliostoma bonorinoi
  • †Calliostoma caminosi
  • †Calliostoma castellanosae
  • †Calliostoma cossmani
  • †Calliostoma duplicatum
  • †Calliostoma garreti
  • †Calliostoma garretti
  • †Calliostoma malumiani
  • †Calliostoma mapuchei
  • †Calliostoma masiuku
  • †Calliostoma meisteri
  • †Calliostoma nativum
  • †Calliostoma negroensis
  • †Calliostoma nudum – or unidentified comparable form
  • †Calliostoma nulloi
  • †Calliostoma observationis
  • †Calliostoma peraratum
  • †Calliostoma planum
  • †Calliostoma punctatulum
  • †Calliostoma puntasium
  • †Calliostoma santacruzense
  • †Calliostoma santacruzensis
  • †Calliostoma sp.
  • †Calliostoma stpanicic
  • †Calliostoma suarezi
  • †Calliostoma trombottoi
• †Callistoe – type locality for genus
• †Callistoe
  • †Callistoe sp.
  • †Callistoe vincei – type locality for species
• †Callistopollenites
  • †Callistopollenites sp.
• †Callucina
  • †Callucina glauca
• †Calodontotherium
  • †Calodontotherium varietatum – type locality for species
• †Calomys
  • †Calomys callosus
  • †Calomys musculinus
  • †Calomys sp.
• †Calophyllum – or unidentified comparable form
  • †Calophyllum TY034informal
• †Calyptocephalella
  • †Calyptocephalella canqueli – type locality for species
  • †Calyptocephalella sp.
• †Calyptraea – report made of unidentified related form or using admittedly obsolete nomenclature
• †Calyptraea
  • †Calyptraea americana
  • †Calyptraea discoidalis
  • †Calyptraea juliana
  • †Calyptraea merriami – or unidentified comparable form
  • †Calyptraea pileus
  • †Calyptraea sp.
• †Camargomendesia
  • †Camargomendesia sp.
• †Camarozonosporites
  • †Camarozonosporites ambigens
  • †Camarozonosporites spp.
• †Campanile
  • †Campanile benecki – or unidentified related form
  • †Campanile rarinodosum – or unidentified comparable form
• †Campanorco – type locality for genus
• †Campanorco
  • †Campanorco inauguralis – type locality for species
  • †Campanorco sp.
• †Camphoromoea
  • †Camphoromoea speciosa
• †Camptonectes
  • †Camptonectes sp.
• †Cancellaria
  • †Cancellaria gracilis
• †Canchadelphys – type locality for genus
  • †Canchadelphys cristata – type locality for species
• †Canis
  • †Canis avus
  • †Canis familiaris
  • †Canis griseus
  • †Canis gymnocercus – or unidentified related form
  • †Canis gymnocercus
  • †Canis sp.
• †Canthiumidites
  • †Canthiumidites bellus – or unidentified related form
• †Caperea
  • †Caperea marginata
• †Capulus – tentative report
• †Capulus
  • †Capulus ladyae
  • †Capulus piramidensis
  • †Capulus sp.
• †Carabites
  • †Carabites harringtoni – type locality for species
  • †Carabites schueli – type locality for species
• †Carcharhinus
  • †Carcharhinus sp.
• †Carcharias
  • †Carcharias acutissima
  • †Carcharias taurus
• †Carcharodon – or unidentified comparable form
• †Carcharodon
  • †Carcharodon auriculatus
  • †Carcharodon hastalis
  • †Carcharodon plicatilis
  • †Carcharodon sp.
• †Carcharoides
  • †Carcharoides catticus
• †Carcinophora
  • †Carcinophora pachyura – type locality for species
• †Cardiatherium
  • †Cardiatherium chasicoense
  • †Cardiatherium orientalis – or unidentified related form
  • †Cardiatherium paranense – type locality for species
  • †Cardiatherium patagonicum – type locality for species
  • †Cardiatherium patagonicum
  • †Cardiatherium sp.
• †Cardiocardita
  • †Cardiocardita inaequalis
• †Cardiomys – tentative report
• †Cardiomys – or unidentified comparable form
• †Cardiomys
  • †Cardiomys ameghinorum
  • †Cardiomys sp.
• †Carditella
  • †Carditella flabellum
  • †Carditella naviformis
  • †Carditella semen
• †Cardium – report made of unidentified related form or using admittedly obsolete nomenclature
• †Cardium
  • †Cardium muliradiatum
  • †Cardium pisum
  • †Cardium puelchun
  • †Cardium sp.
  • †Cardium squamiferum
  • †Cardium suborbicularis
• †Cariama
  • †Cariama santacrucensis – type locality for species
• †Carlesia
  • †Carlesia pendolai – or unidentified comparable form
  • †Carlesia sp.
• †Carlocebus – tentative report
• †Carlocebus – or unidentified comparable form
• †Carlocebus
  • †Carlocebus carmenensis – type locality for species
  • †Carlocebus carmenensis – or unidentified comparable form
  • †Carlocebus carmenensis
  • †Carlocebus intermedius – type locality for species
• †Carodnia – type locality for genus
• †Carodnia
  • †Carodnia feruglioi – type locality for species
  • †Carodnia feruglioi – or unidentified comparable form
• †Caroloameghinia – type locality for genus
• †Caroloameghinia
  • †Caroloameghinia intermedia – type locality for species
  • †Caroloameghinia mater – type locality for species
  • †Caroloameghinia mater
  • †Caroloameghinia tenuis – type locality for species
  • †Caroloameghinia tenuis
• †Carolodarwinia – type locality for genus
  • †Carolodarwinia pyramidentata – type locality for species
• †Carolopaulacoutoia
  • †Carolopaulacoutoia sp.
• †Carolozittelia – type locality for genus
  • †Carolozittelia tapiroides – type locality for species
• †Carpilius – tentative report
  • †Carpilius sp.
• †Carpolithus
  • †Carpolithus bivascularis – type locality for species
  • †Carpolithus mirhojanus – type locality for species
  • †Carpolithus patagonicus – type locality for species
  • †Carpolithus patagonicus
  • †Carpolithus pichileufensis – type locality for species
• †Caryocorbula
  • †Caryocorbula pulchella
• †Casearia
  • †Casearia patagonica – type locality for species
• † Cassia – report made of unidentified related form or using admittedly obsolete nomenclature
• † Cassia
  • †Cassia argentinensis – type locality for species
  • †Cassia argentinensis
  • †Cassia longifolia
  • †Cassia oxleyi
  • †Cassia patagonica – type locality for species
  • †Cassia sp.
• †Casuarina
  • †Casuarina palagonica – type locality for species
• †Catagonus – or unidentified comparable form
• †Catagonus
  • †Catagonus sp.
• †Cathartes
  • †Cathartes fossilis – type locality for species
• †Catinipollis
  • †Catinipollis geiseltalensis
• †Catogenus
  • †Catogenus punctatus – type locality for species
• †Cavia
  • †Cavia aperea
  • †Cavia sp.
• †Caviocricetus – type locality for genus
• †Caviocricetus
  • †Caviocricetus lucasi – type locality for species
  • †Caviocricetus lucasi
• †Caviodon
  • †Caviodon australis
  • †Caviodon multiplicatus
  • †Caviodon sp.
• †Cedrela
  • †Cedrela fissilis
  • †Cedrela mexicaniformis – type locality for species
  • †Cedrela pichileufuana – type locality for species
• †Celastrophyllum
  • †Celastrophyllum elaeodendriforme – type locality for species
  • †Celastrophyllum fraunhoferifolium – type locality for species
• †Celinapterix – type locality for genus
  • †Celinapterix bellissima – type locality for species
• †Celtis – report made of unidentified related form or using admittedly obsolete nomenclature
• †Celtis
  • †Celtis ameghenoi – type locality for species
  • †Celtis ameghenoi
  • †Celtis ameghinoi
  • †Celtis sp.
• †Cephalanthus
  • †Cephalanthus glabratifolius – type locality for species
• †Cephalomyopsis
  • †Cephalomyopsis hipselodontus
  • †Cephalomyopsis morphotype 3informal
  • †Cephalomyopsis sp.
• †Cephalomys – type locality for genus
• †Cephalomys
  • †Cephalomys arcidens – type locality for species
  • †Cephalomys arcidens
  • †Cephalomys ceciae – type locality for species
  • †Cephalomys plexus – type locality for species
  • †Cephalomys plexus
  • †Cephalomys sp.
• †Cephalorhynchus
  • †Cephalorhynchus eutropia – type locality for species
• †Cerambycites
  • †Cerambycites wilmattae – type locality for species
• †Ceratophrys
  • †Ceratophrys ameghinorum
  • †Ceratophrys sp.
• †Ceratosporites
  • †Ceratosporites equalis
• †Cerithiopsis
  • †Cerithiopsis juliana
• †Cerithium
  • †Cerithium americanum
  • †Cerithium armoricense – or unidentified comparable form
• †Cerodinium
  • †Cerodinium sp.
• †Chaceon
  • †Chaceon peruvianus
• †Chaetophractus
  • †Chaetophractus sp.
  • †Chaetophractus villosus – or unidentified comparable form
  • †Chaetophractus villosus
• †Changquin – type locality for genus
  • †Changquin woodi – type locality for species
• †Chapalmalania
  • †Chapalmalania alteafrontis
• †Chasichimys
  • †Chasichimys bonaerense
• †Chasicobradys – type locality for genus
  • †Chasicobradys intermedius – type locality for species
• †Chasicostylus – type locality for genus
  • †Chasicostylus castroi – type locality for species
• †Chasicotatus
  • †Chasicotatus ameghinoi
  • †Chasicotatus peiranoi – or unidentified comparable form
  • †Chasicotatus sp.
  • †Chasicotatus spinozai
• †Chelonoidis
  • †Chelonoidis australis – type locality for species
  • †Chelonoidis australis – or unidentified comparable form
• †Chenopodiineae
  • †Chenopodiineae sp.
• †Chenopodipollis
  • †Chenopodipollis chenopodiaceoides
  • †Chenopodipollis multicavus
  • †Chenopodipollis sp.
• †Chenopus – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Chenopus santacruzensis
• †Chesapecten
  • †Chesapecten patagonensis – type locality for species
  • †Chesapecten patagonensis
• †Chicoreus
  • †Chicoreus guadalupei
• †Chinchekoala – type locality for genus
  • †Chinchekoala qunita – type locality for species
• †Chione – report made of unidentified related form or using admittedly obsolete nomenclature
• †Chione
  • †Chione casa
  • †Chione eupyga
  • †Chione patagonica
  • †Chione sp.
  • †Chione volckmanni
• †Chionopsis
  • †Chionopsis australis – type locality for species
  • †Chionopsis sp.
• †Chironectes
  • †Chironectes sp.
• †Chlamyphractus
  • †Chlamyphractus pressulus
• †Chlamys – report made of unidentified related form or using admittedly obsolete nomenclature
• †Chlamys
  • †Chlamys eupatagonicus
  • †Chlamys geminata
  • †Chlamys hupeanus
  • †Chlamys iheringi
  • †Chlamys iheringii
  • †Chlamys nicolasi
  • †Chlamys praenuncius – or unidentified comparable form
  • †Chlamys puntana
  • †Chlamys riggsi – type locality for species
  • †Chlamys salamanca – or unidentified related form
  • †Chlamys sp.
• †Chloephaga
  • †Chloephaga sp. 1informal
  • †Chloephaga sp. 2informal
• †Chlorophora
  • †Chlorophora tinctoria
• †Chlorostoma
  • †Chlorostoma atrum
• †Chorobates
  • †Chorobates scalabrini
  • †Chorobates sp.
  • †Chorobates villosissimus
• †Chrysomelites
  • †Chrysomelites danielis – type locality for species
• †Chrysophrys
  • †Chrysophrys sp.
• †Chubutomys – type locality for genus
• †Chubutomys
  • †Chubutomys leucoreios – type locality for species
  • †Chubutomys navaensis – type locality for species
  • †Chubutomys simpsoni – type locality for species
  • †Chubutomys simpsoni
• †Chubutophis – type locality for genus
  • †Chubutophis grandis – type locality for species
• †Chukimys – type locality for genus
  • †Chukimys favaloroi – type locality for species
• †Chunga
  • †Chunga incerta
• †Cicatricosisporites
  • †Cicatricosisporites sp.
• †Cimomia
  • †Cimomia camachoi
• †Cingulatisporites
  • †Cingulatisporites sp.
• †Cingulotriletes
  • †Cingulotriletes australis
• †Cingutriletes
  • †Cingutriletes australis
• †Circulus
  • †Circulus pardelensis
• †Cirsonella
  • †Cirsonella sp.
• †Cirsotrema
  • †Cirsotrema cossmanni
  • †Cirsotrema rugulosa
• †Cissites
  • †Cissites patagonica – type locality for species
  • †Cissites patagonicum
• †Cissus
  • †Cissus pichileufensis – type locality for species
• †Cladocora – tentative report
• †Cladocora
  • †Cladocora gracilis – or unidentified comparable form
  • †Cladocora sp.
• †Cladornis
  • †Cladornis pachypus
• †Cladosictis – type locality for genus
• †Cladosictis
  • †Cladosictis centralis – type locality for species
  • †Cladosictis patagonica – type locality for species
  • †Cladosictis patagonica – or unidentified comparable form
  • †Cladosictis patagonica
  • †Cladosictis sp. – type locality for species
  • †Cladosictis sp.
• †Claenodon – tentative report
  • †Claenodon patagonicus – type locality for species
• †Classopolis
  • †Classopolis sp. 2informal
• †Classopollis
  • †Classopollis classoides
  • †Classopollis sp.
  • †Classopollis sp. 1informal
  • †Classopollis sp. 2informal
  • †Classopollis spp.
• †Clausinella
  • †Clausinella gayi
• †Clavatipollenites
  • †Clavatipollenites sp.
• †Clavifera
  • †Clavifera triplex
• †Clavipholas – tentative report
  • †Clavipholas pholadoides
• †Clavus – report made of unidentified related form or using admittedly obsolete nomenclature
• †Clavus
  • †Clavus bracaccinni
  • †Clavus santacrucensis
  • †Clavus santacruzensis
  • †Clavus sp.
• †Clenia – type locality for genus
• †Clenia
  • †Clenia brevis – type locality for species
  • †Clenia minuscula – type locality for species
• †Clyomys – or unidentified related form
  • †Clyomys sp.
• †Clypeotherium – type locality for genus
  • †Clypeotherium magnum – type locality for species
• †Cnemidaria
  • †Cnemidaria sp.
• †Cocatherium – type locality for genus
  • †Cocatherium lefipanum – type locality for species
• †Coccodentalium
  • †Coccodentalium sp.
• †Coccolithus
  • †Coccolithus cavus
• †Coccoloba
  • †Coccoloba ruizianiforma – type locality for species
• †Cochilius – type locality for genus
• †Cochilius
  • †Cochilius fumensis – type locality for species
  • †Cochilius sp.
• †Cochliomya
  • †Cochliomya macellaria
• †Cochlops
  • †Cochlops muricatus
  • †Cochlops sp.
• †Cochlospermaceae – tentative report
  • †Cochlospermaceae SA 019informal
• †Cochlospermum – or unidentified comparable form
• †Cochlospermum
  • †Cochlospermum previtifolium – type locality for species
  • †Cochlospermum previtifolium
• †Coelastrum
  • †Coelastrum sp.
• †Coelopis
  • †Coelopis striata
• †Coelosoma
  • †Coelosoma eversa
• †Coelostylodon – type locality for genus
• †Coelostylodon
  • †Coelostylodon caroloameghinoi – type locality for species
  • †Coelostylodon florentinoameghinoi – type locality for species
• †Coelutaetus – type locality for genus
  • †Coelutaetus cribellatus – type locality for species
• †Colaptes
  • †Colaptes campestris
• †Colbertia – type locality for genus
• †Colbertia
  • †Colbertia lumbrerense – type locality for species
  • †Colbertia sp.
• †Colhuapia – type locality for genus
  • †Colhuapia rosei – type locality for species
• †Colhueconus
  • †Colhueconus simpsoni
• †Colhuelia – type locality for genus
  • †Colhuelia fruhi – type locality for species
• †Collonista
  • †Collonista philippi
• †Colomys
  • †Colomys sp.
• †Colossoma
  • †Colossoma macropomus
• †Colpodon – or unidentified comparable form
• †Colpodon
  • †Colpodon distinctus – type locality for species
  • †Colpodon distinctus
  • †Colpodon sp.
• †Colpospirella
  • †Colpospirella algida
• †Colpostemma
  • †Colpostemma sp.
• †Columbarium
  • †Columbarium archimedis
• †Columbrarum
  • †Columbrarum archimedes
• †Colus – or unidentified related form
  • †Colus delrioae
• †Comaphorus
  • †Comaphorus concisus
• †Cominella
  • †Cominella patagonica
  • †Cominella tumida
• †Compositoipollenites
  • †Compositoipollenites tarragoensis – or unidentified related form
• †Concavisporites
  • †Concavisporites sp. Iinformal
  • †Concavisporites sp. IIinformal
• †Concolpites
  • †Concolpites leptos
• †Confertisulcites
  • †Confertisulcites sp. 1informal
  • †Confertisulcites sp. 2informal
• †Contracavia
  • †Contracavia sp.
• †Contrerascynus – type locality for genus
  • †Contrerascynus borhyaenoides – type locality for species
• †Conus
  • †Conus infulatus – or unidentified related form
  • †Conus patagonicus
  • †Conus sp.
• †Converrucosisporites
  • †Converrucosisporites sp.
• †Convolutispora
  • †Convolutispora sp. 1informal
• †Coona – type locality for genus
• †Coona
  • †Coona gaudryi – type locality for species
  • †Coona gutierrezi – type locality for species
  • †Coona pattersoni – type locality for species
• †Coprosma – report made of unidentified related form or using admittedly obsolete nomenclature
• †Coprosma
  • †Coprosma incerta – type locality for species
  • †Coprosma incerta
  • †Coprosma spathulatifolia – type locality for species
• †Coprosoma
  • †Coprosoma incerta
• †Coptospora
  • †Coptospora archangelskyi
  • †Coptospora sp.
• †Coquenia – type locality for genus
• †Coquenia – or unidentified comparable form
  • †Coquenia bondi – type locality for species
  • †Coquenia sp.
• †Corbicula
  • †Corbicula pehuenchensis
• †Corbula
  • †Corbula juliana
• †Cordana
  • †Cordana sp.
• †Cordioxylon
  • †Cordioxylon prototrichotoma – type locality for species
• †Coresodon
  • †Coresodon scalpridens
  • †Coresodon sp.
• †Corizus – tentative report
  • †Corizus deflagratus
• †Corrugatisporites
  • †Corrugatisporites argentinus
• †Corsinipollenites
  • †Corsinipollenites atlantica
  • †Corsinipollenites sp.
• †Corydoras
  • †Corydoras paleatus
• †Coscinocercus
  • †Coscinocercus brachyurus
  • †Coscinocercus marcalaini
  • †Coscinocercus sp.
• †Cossonus – tentative report
  • †Cossonus devoratus
• †Costacopluma
  • †Costacopluma australis – type locality for species
  • †Costacopluma salamanca – type locality for species
• †Coussarea
  • †Coussarea tertiaria – type locality for species
• †Cramauchenia – type locality for genus
• †Cramauchenia
  • †Cramauchenia normalis – type locality for species
  • †Cramauchenia normalis
• †Cranithlastus – type locality for genus
  • †Cranithlastus xibiensis – type locality for species
• †Cranwellipollis
  • †Cranwellipollis apiculatus – or unidentified comparable form
• †Crassatella
  • †Crassatella brandmayri – type locality for species
  • †Crassatella kokeni
  • †Crassatella patagonica
  • †Crassatella sp.
• †Crassiorites – type locality for genus
• †Crassiorites
  • †Crassiorites australis – type locality for species
  • †Crassiorites australis
• †Crassostrea – tentative report
• †Crassostrea
  • †Crassostrea hatcheri – tentative report
  • †Crassostrea hatcheri – or unidentified comparable form
  • †Crassostrea hatcheri
  • †Crassostrea patagonica
• †Crassotrea
  • †Crassotrea hatcheri
• †Crepidula
  • †Crepidula ancestra
  • †Crepidula gregaria
  • †Crepidula onyx
  • †Crepidula protea
  • †Crepidula sp.
• †Crepipatella
  • †Crepipatella dilatata
• †Cricetinarum
  • †Cricetinarum sp.
• †Cricotriporites – or unidentified comparable form
• †Cricotriporites
  • †Cricotriporites guianensis
  • †Cricotriporites sp.
• †Crossea
  • †Crossea pilula
• †Crucibulum
  • †Crucibulum multicostatum
• †Cruciplacolithus
  • †Cruciplacolithus primus
• †Cruschedula
  • †Cruschedula revola
• †Cryptocaryoides – type locality for genus
  • †Cryptocaryoides mariasantisimensis – type locality for species
• †Cryptophagus
  • †Cryptophagus sunchalensis – type locality for species
• †Cryptorhytis
  • †Cryptorhytis sp. Ainformal
• †Ctenocheles
  • †Ctenocheles sp.
• †Ctenomys
  • †Ctenomys chapadmalensis
  • †Ctenomys kraglievichi
  • †Ctenomys lujanensis
  • †Ctenomys magellanicus
  • †Ctenomys sp.
  • †Ctenomys talarum – or unidentified comparable form
  • †Ctenomys talarum
• †Cubitostrea
  • †Cubitostrea alvarezii
  • †Cubitostrea primordialis – type locality for species
  • †Cubitostrea sp.
• †Cucullaea – tentative report
• †Cucullaea
  • †Cucullaea alta – or unidentified comparable form
  • †Cucullaea alta
  • †Cucullaea antarctica
  • †Cucullaea barbara
  • †Cucullaea fuegunensis – type locality for species
  • †Cucullaea grahamensis
  • †Cucullaea marshalli – type locality for species
  • †Cucullaea marshalli – or unidentified comparable form
  • †Cucullaea marshalli
  • †Cucullaea patagonensis
  • †Cucullaea plana
  • †Cucullaea sp.
  • †Cucullaea sp. Cinformal
• †Cucullaria
  • †Cucullaria darwini
• †Cullinia
  • †Cullinia sp.
• †Cunampaia – type locality for genus
  • †Cunampaia simplex – type locality for species
• †Cupania – report made of unidentified related form or using admittedly obsolete nomenclature
• †Cupania
  • †Cupania cordinii – type locality for species
  • †Cupania grosse-serrata
  • †Cupania grosseserrata
  • †Cupania incerta – type locality for species
  • †Cupania latifolioides – type locality for species
  • †Cupania latifolioides
  • †Cupania patagonica – type locality for species
  • †Cupania sp.
  • †Cupania vernaliformis – type locality for species
• †Cupanieidites
  • †Cupanieidites reticularis
• †Cupressinoxylon
  • †Cupressinoxylon sp.
• †Curculionites
  • †Curculionites angustior – type locality for species
  • †Curculionites epistictus – type locality for species
  • †Curculionites eustictus – type locality for species
  • †Curculionites harringtoni
  • †Curculionites jujuyensis
  • †Curculionites latiusculus – type locality for species
  • †Curculionites magdalinus – type locality for species
  • †Curculionites megastictus – type locality for species
  • †Curculionites microstictus – type locality for species
  • †Curculionites parastictus – type locality for species
  • †Curculionites stebingeri – type locality for species
  • †Curculionites sunchalicus – type locality for species
  • †Curculionites wielandi
• †Currugatisporites
  • †Currugatisporites argentinus
• †Curviarculia – type locality for genus
• †Curviarculia
  • †Curviarculia delicata – type locality for species
  • †Curviarculia lamasi – type locality for species
• †Cuspidaria
  • †Cuspidaria sp.
• †Cuyenopteris – type locality for genus
• †Cuyenopteris
  • †Cuyenopteris patagoniensis – type locality for species
  • †Cuyenopteris patagoniensis
• †Cyamium
  • †Cyamium sp.
• †Cyanoliseus
  • †Cyanoliseus patagonus – or unidentified comparable form
• †Cyatheacidites
  • †Cyatheacidites annulata – or unidentified comparable form
  • †Cyatheacidites annulatus
• †Cyathidites
  • †Cyathidites australis
  • †Cyathidites congoensis
  • †Cyathidites minor
  • †Cyathidites paleospora
  • †Cyathidites patagonicus
  • †Cyathidites spp.
• †Cycadopites
  • †Cycadopites sp.
  • †Cycadopites spp.
• †Cyclagelosphaera
  • †Cyclagelosphaera sp.
• †Cyclapophysis
  • †Cyclapophysis monmouthensis
• †Cyclocardia
  • †Cyclocardia compressum
  • †Cyclocardia nortensis
• †Cyclocephala
  • †Cyclocephala signaticollis
• †Cyclotella
  • †Cyclotella sp.
• †Cyclusphaera
  • †Cyclusphaera psilata – or unidentified comparable form
• †Cylindriscala
  • †Cylindriscala sp.
• †Cymatium – report made of unidentified related form or using admittedly obsolete nomenclature
• †Cymatium
  • †Cymatium rada
  • †Cymatium usurpator
• †Cyonasua
  • †Cyonasua argentina
  • †Cyonasua brevirostris
  • †Cyonasua groeberi – type locality for species
  • †Cyonasua pascuali – type locality for species
  • †Cyonasua prebrevirostris
  • †Cyonasua sp.
• †Cyperaceaepollis
  • †Cyperaceaepollis neogenicus
• †Cyperocarpus
  • †Cyperocarpus sp. 1informal
• †Cyprinodon – tentative report
  • †Cyprinodon primulus – type locality for species
• †Cyrtopleura
  • †Cyrtopleura lanceolata
• †Cytherea
  • †Cytherea munsteri
• †Dacrycarpites
  • †Dacrycarpites australiensis – or unidentified comparable form
  • †Dacrycarpites australiensis
  • †Dacrycarpites australliensis
  • †Dacrycarpites sp.
• †Dacrycarpus
  • †Dacrycarpus puertae
• †Dacrydiumites
  • †Dacrydiumites florinii
  • †Dacrydiumites praecupressinoides
• †Dalbergia
  • †Dalbergia patagonica – type locality for species
• †Damassadinium
  • †Damassadinium californicum
• †Dasyatis
  • †Dasyatis sp.
• †Dasypodidarum
  • †Dasypodidarum sp.
• †Dasypus
  • †Dasypus hybridus
  • †Dasypus neogaeus
• †Degonia
  • †Degonia sympathica – type locality for species
• †Delectopecten
  • †Delectopecten neuquenensis
• †Deltoidospora
  • †Deltoidospora australis
  • †Deltoidospora minor
  • †Deltoidospora neddeni
  • †Deltoidospora sp.
• †Dendrocygna
  • †Dendrocygna sp.
• †Densoisporites
  • †Densoisporites velatus
• †Dentalium
  • †Dentalium asperum
  • †Dentalium cazadoriana
  • †Dentalium giganteum
  • †Dentalium iheringi
  • †Dentalium magnumcostatum
  • †Dentalium pardelensis
  • †Dentalium preservatum
  • †Dentalium prudens
  • †Dentalium sp.
  • †Dentalium sulcosum
  • †Dentalium superbus
• †Depressiscala
  • †Depressiscala nitidella – or unidentified related form
• †Dermestes
  • †Dermestes maculatus
• †Derorhynchus
  • †Derorhynchus minutus – or unidentified related form
  • †Derorhynchus minutus – or unidentified comparable form
  • †Derorhynchus sp.
• †Deseadomys – type locality for genus
• †Deseadomys
  • †Deseadomys arambourgi – type locality for species
  • †Deseadomys arambourgi
• †Deuterotherium
  • †Deuterotherium distichum
  • †Deuterotherium sp.
• †Devincenzia – tentative report
  • †Devincenzia sp.
• †Diadiaphorus – tentative report
• †Diadiaphorus – or unidentified comparable form
• †Diadiaphorus
  • †Diadiaphorus caniadensis – type locality for species
  • †Diadiaphorus laternarium
  • †Diadiaphorus majusculus
  • †Diadiaphorus paranensis
  • †Diadiaphorus robustus – type locality for species
  • †Diadiaphorus sp.
• †Diaphorocetus – type locality for genus
  • †Diaphorocetus poucheti – type locality for species
• †Diaphoromys
  • †Diaphoromys sp.
• †Diatenopteryx
  • †Diatenopteryx fossilis – type locality for species
  • †Diatenopteryx sorbifoliiforma – type locality for species
• †Dicardia
  • †Dicardia fissa
• †Dicellaesporites
  • †Dicellaesporites spp.
• †Dicksonia
  • †Dicksonia patagonica – type locality for species
• †Dictyophyllidites
  • †Dictyophyllidites arcuatus
  • †Dictyophyllidites chiquimilense
  • †Dictyophyllidites concavus
  • †Dictyophyllidites harrisii
  • †Dictyophyllidites mortoni
  • †Dictyophyllidites sp.
• †Didelphis
  • †Didelphis brachyodonta
  • †Didelphis reigi – type locality for species
  • †Didelphis reigi
  • †Didelphis sp.
• †Didelphopsis
  • †Didelphopsis sp.
• †Didolodus – type locality for genus
• †Didolodus
  • †Didolodus latigonus – type locality for species
  • †Didolodus magnus – type locality for species
  • †Didolodus minor – type locality for species
  • †Didolodus minor
  • †Didolodus multicuspis – type locality for species
  • †Didolodus multicuspis
  • †Didolodus sp.
• †Diloboderus
  • †Diloboderus abderus
• †Dilobodon
  • †Dilobodon lutarius
• †Dilwynites
  • †Dilwynites tuberculatus – or unidentified comparable form
• †Dinocardium
  • †Dinocardium novus – type locality for species
• †Dinoflagellate
  • †Dinoflagellate cysts
• †Dinotoxodon
  • †Dinotoxodon paranensis
• †Dioon
  • †Dioon sp.informal
• †Dioplotherium
  • †Dioplotherium sp.
• †Diplodetis
  • †Diplodetis nutrix
• †Diplodon – type locality for genus
• †Diplodon
  • †Diplodon ampliatus – type locality for species
  • †Diplodon glaucus
  • †Diplodon sp.
• †Diplodonta
  • †Diplodonta vilardeboaena
• †Diporicellaesporites
  • †Diporicellaesporites sp.
• †Diporisporites
  • †Diporisporites elongatus
  • †Diporisporites sp.
• †Diporites
  • †Diporites aspis
• †Dipsidripella
  • †Dipsidripella sp.
• †Dischides
  • †Dischides patagonicum
• †Disparilia
  • †Disparilia sp.
• †Distaverrusporites
  • †Distaverrusporites simplex – or unidentified comparable form
• †Distylophorus – type locality for genus
• †Distylophorus
  • †Distylophorus alouatinus – type locality for species
  • †Distylophorus alouatinus
• †Doedicurus
  • †Doedicurus clavicaudatus
  • †Doedicurus sp.
• †Doellomys
  • †Doellomys sp.
• †Doellotatus – or unidentified comparable form
• †Doellotatus
  • †Doellotatus chapadmalensis
  • †Doellotatus inornatus – or unidentified comparable form
  • †Doellotatus inornatus
  • †Doellotatus praecursor – or unidentified comparable form
  • †Doellotatus sp.
• †Dolicavia
  • †Dolicavia minuscula
  • †Dolicavia sp.
• †Dolichocebus
  • †Dolichocebus gaimanensis
• †Dolichoderus – tentative report
  • †Dolichoderus sp.
• †Dolichostylodon – type locality for genus
  • †Dolichostylodon saltensis – type locality for species
• †Dolichotis
  • †Dolichotis patagonum
  • †Dolichotis sp.
• †Doliocarpus
  • †Doliocarpus oblongifolia
• †Doroteoxylon
  • †Doroteoxylon vicentiperezii
• †Dosinia
  • †Dosinia burmeisteri
  • †Dosinia cuspidata – type locality for species
  • †Dosinia laeviuscula
  • †Dosinia laeviusucula
  • †Dosinia meridionalis
  • †Dosinia meridonalis
  • †Dosinia salarensis
  • †Dosinia sp.
• †Draconomys – type locality for genus
  • †Draconomys verai – type locality for species
• †Drimys
  • †Drimys patagonica – type locality for species
• †Dryadopollis
  • †Dryadopollis sp.1informal
• †Dryophyllum
  • †Dryophyllum australis – type locality for species
  • †Dryophyllum australis
• †Dryopteris
  • †Dryopteris sp.
• †Dryornis – type locality for genus
  • †Dryornis pampeanus – type locality for species
• †Dryoxylon
  • †Dryoxylon spp.
• †Drytomomys
  • †Drytomomys sp.
• †Dudumus – type locality for genus
  • †Dudumus ruigomezi – type locality for species
• †Dusicyon
  • †Dusicyon avus
  • †Dusicyon sp.
• †Dyadosporites
  • †Dyadosporites annulatus
• †Eatoniella
  • †Eatoniella sp.
• †Echinorhinus
  • †Echinorhinus pozzii
• †Echinosporis
  • †Echinosporis sp.
• †Echiperiporites
  • †Echiperiporites parviechinatus
  • †Echiperiporites sp.
• †Echites
  • †Echites tertiaria – type locality for species
• †Echitriporites
  • †Echitriporites sp.
• †Edvardocopeia – type locality for genus
  • †Edvardocopeia sinuosa – type locality for species
• †Edvardotrouessartia – type locality for genus
• †Edvardotrouessartia
  • †Edvardotrouessartia sola – type locality for species
  • †Edvardotrouessartia sola
• †Elaeocarpoxylon
  • †Elaeocarpoxylon sloaneoides – type locality for species
• †Elassotherium
  • †Elassotherium altirostre
  • †Elassotherium sp.
• †Elaterites
  • †Elaterites bruchi – type locality for species
  • †Elaterites microstictus – type locality for species
• †Electroma
  • †Electroma patagonica – type locality for species
• †Eleutherocercus
  • †Eleutherocercus antiquus
  • †Eleutherocercus paranensis
• †Eligmodontia
  • †Eligmodontia typus – or unidentified comparable form
  • †Eligmodontia typus
• †Elmerriggsia – type locality for genus
  • †Elmerriggsia fieldia – type locality for species
• †Embothriophyllum
  • †Embothriophyllum dubium
• †Embothrites
  • †Embothrites sp.informal
• †Embothrium – tentative report
• †Embothrium
  • †Embothrium precoccineum – type locality for species
  • †Embothrium precoccineum
  • †Embothrium pregrandiflorum – type locality for species
  • †Embothrium pregrandiflorum
• †Encinepeltus
  • †Encinepeltus petesatus
• †Enneoconus
  • †Enneoconus parvidens – type locality for species
• †Ensis
  • †Ensis macha
• †Entobia
  • †Entobia sp.
• †Eoastrapostylops – type locality for genus
  • †Eoastrapostylops riolorense – type locality for species
• †Eoauchenia
  • †Eoauchenia cingulata
  • †Eoauchenia primitiva – or unidentified related form
  • †Eoauchenia primitiva – or unidentified comparable form
  • †Eoauchenia primitiva
  • †Eoauchenia sp.
• †Eocaiman – type locality for genus
• †Eocaiman
  • †Eocaiman cavernensis – type locality for species
  • †Eocaiman palaeocenicus – type locality for species
  • †Eocaiman palaeocenicus
• †Eocardia
  • †Eocardia excavata
  • †Eocardia montana
  • †Eocardia sp.
• †Eocoelophorus
  • †Eocoelophorus chapalmalensis
• †Eohegetotherium – type locality for genus
  • †Eohegetotherium priscum – type locality for species
• †Eohyrax – tentative report
• †Eohyrax
  • †Eohyrax brachyodus – type locality for species
  • †Eohyrax isotemnoides – type locality for species
  • †Eohyrax isotemnoides – tentative report
  • †Eohyrax isotemnoides
  • †Eohyrax platyodus – type locality for species
  • †Eohyrax praerusticus – type locality for species
  • †Eohyrax praerusticus
  • †Eohyrax rusticus – type locality for species
  • †Eohyrax rusticus
  • †Eohyrax sp.
• †Eolicaphrium – type locality for genus
  • †Eolicaphrium primarium – type locality for species
• †Eomegatherium
  • †Eomegatherium nanum
• †Eomicrobiotherium
  • †Eomicrobiotherium matutinum – type locality for species
  • †Eomicrobiotherium matutinum
  • †Eomicrobiotherium mykerum – type locality for species
  • †Eomicrobiotherium mykerum
  • †Eomicrobiotherium sp.
• †Eomorphippus – type locality for genus
• †Eomorphippus – tentative report
• †Eomorphippus
  • †Eomorphippus obscurus – type locality for species
  • †Eomorphippus obscurus
  • †Eomorphippus pascuali – type locality for species
  • †Eomorphippus pascuali
  • †Eomorphippus sp.
• †Eoneornis
  • †Eoneornis australis
• †Eopachyrucos – type locality for genus
• †Eopachyrucos
  • †Eopachyrucos pliciferus – type locality for species
  • †Eopachyrucos pliciferus
  • †Eopachyrucos pliciformis – type locality for species
  • †Eopachyrucos pliciformis
  • †Eopachyrucos sp.
• †Eophractus – type locality for genus
  • †Eophractus casamayorensis – type locality for species
• †Eosclerocalyptus
  • †Eosclerocalyptus planus
  • †Eosclerocalyptus proximus
  • †Eosclerocalyptus sp.
  • †Eosclerocalyptus tapinocephalus
• †Eosteiromys – tentative report
• †Eosteiromys
  • †Eosteiromys annectens
  • †Eosteiromys homogenidens – or unidentified comparable form
  • †Eosteiromys homogenidens
  • †Eosteiromys segregatus
  • †Eosteiromys sp.
• †Eoturris
  • †Eoturris jorgensis
  • †Eoturris sanatacrucensis
  • †Eoturris santacrucensis
  • †Eoturris unifascialis
• †Eoviscaccia – tentative report
• †Eoviscaccia
  • †Eoviscaccia australis – type locality for species
  • †Eoviscaccia australis
  • †Eoviscaccia sp.
• †Epecuenia
  • †Epecuenia thoatherioides
• †Ephedra
  • †Ephedra sp.
• †Ephedripites
  • †Ephedripites claricristatus
  • †Ephedripites lusaticus
  • †Ephedripites sp.
• †Epidolops
  • †Epidolops sp.
• †Epieuryceros
  • †Epieuryceros sp.
  • †Epieuryceros truncus
• †Epiklohnia – type locality for genus
  • †Epiklohnia verticalis – type locality for species
• †Epipatriarchus
  • †Epipatriarchus sp.
• †Epipedonota
  • †Epipedonota cristallisata
• †Epitonium
  • †Epitonium albidum
  • †Epitonium angulatum
  • †Epitonium brocherti
  • †Epitonium chubutinum
  • †Epitonium cingolanii
  • †Epitonium cionei
  • †Epitonium georgettinum
  • †Epitonium humphreysii
  • †Epitonium leptosomum
  • †Epitonium multistriatum
  • †Epitonium novangliae – or unidentified related form
  • †Epitonium quirogai
  • †Epitonium rugolosa
  • †Epitonium rugulosa
  • †Epitonium sp.
  • †Epitonium tonni
  • †Epitonium unifasciatum
  • †Epitonium venosum
• †Epitypotherium – type locality for genus
  • †Epitypotherium cancellatum – type locality for species
• †Equisetosporites
  • †Equisetosporites claricristatus
  • †Equisetosporites lusaticus
  • †Equisetosporites notensis
  • †Equisetosporites sp.
• †Equus
  • †Equus caballus – or unidentified comparable form
  • †Equus caballus
  • †Equus curvidens – or unidentified comparable form
  • †Equus sp.
• †Erethizon
  • †Erethizon sp.
• †Eretiscus – type locality for genus
• †Eretiscus
  • †Eretiscus tonnii – type locality for species
  • †Eretiscus tonnii
• †Erichosaurus – type locality for genus
• †Erichosaurus
  • †Erichosaurus bombimaxila – type locality for species
  • †Erichosaurus debilis – type locality for species
  • †Erichosaurus diminutus – type locality for species
• †Ericipites
  • †Ericipites microtectanum
  • †Ericipites microtectatum – type locality for species
  • †Ericipites microtectatum
  • †Ericipites scabratus
• †Eriphyla
  • †Eriphyla drygalskiana
  • †Eriphyla meridiana
• †Ernestohaeckelia – type locality for genus
• †Ernestohaeckelia
  • †Ernestohaeckelia aculeata – type locality for species
  • †Ernestohaeckelia acutidens – type locality for species
• †Ernestokokenia – or unidentified comparable form
• †Ernestokokenia
  • †Ernestokokenia chaishoer – type locality for species
  • †Ernestokokenia nitida – type locality for species
  • †Ernestokokenia nitida
  • †Ernestokokenia patagonica – type locality for species
  • †Ernestokokenia sp.
  • †Ernestokokenia trigonalis – type locality for species
  • †Ernestokokenia yirunhor – type locality for species
  • †Ernestokokenia yirunhor – tentative report
• †Erythrina
  • †Erythrina cristagalli
• †Erythroxylon
  • †Erythroxylon cuneifolioides – type locality for species
  • †Erythroxylon cuneifolioides
• †Escallonia – tentative report
• †Escallonia
  • †Escallonia sp.
  • †Escallonia TY043informal
• †Escalloniiphyllum
  • †Escalloniiphyllum sp.
• †Escribania – type locality for genus
• †Escribania
  • †Escribania chubutensis – type locality for species
  • †Escribania talonicuspis – type locality for species
• †Ethelomys – type locality for genus
  • †Ethelomys loomisi – type locality for species
• †Eubalaena
  • †Eubalaena sp.
• †Eucalyptus
  • †Eucalyptus caldericola
  • †Eucalyptus frenguelliana
• †Eucelophorus
  • †Eucelophorus cabrerai
  • †Eucelophorus chapalmalensis – or unidentified comparable form
• †Eucholoeops
  • †Eucholoeops fronto – or unidentified comparable form
  • †Eucholoeops fronto
  • †Eucholoeops ingens
  • †Eucholoeops sp.informal
  • †Eucholoeops sp.
• †Euclastes – type locality for genus
• †Euclastes
  • †Euclastes meridionalis – type locality for species
  • †Euclastes meridionalis
• †Eucryphia
  • †Eucryphia tertiaria – type locality for species
• †Eucryphiaceoxylon
  • †Eucryphiaceoxylon eucryphioides
• †Eudolium
  • †Eudolium lissiei
• †Eudolops – type locality for genus
• †Eudolops
  • †Eudolops hernandezi – type locality for species
  • †Eudolops tetragonus – type locality for species
  • †Eudolops tetragonus
• †Eudromia
  • †Eudromia elegans – or unidentified comparable form
  • †Eudromia sp.
• †Eulamaops
  • †Eulamaops paralellus
• †Eulima
  • †Eulima subventricosa
• †Eumarcia
  • †Eumarcia arenosa – or unidentified related form
• †Eumegamys – tentative report
• †Eumegamys
  • †Eumegamys sp.
• †Eumegamysops
  • †Eumegamysops sp.
• †Eumetopias
  • †Eumetopias jubata
• †Eumetula
  • †Eumetula michaelseni
  • †Eumetula pulla
• †Eumysops
  • †Eumysops cavoides
  • †Eumysops formosus
  • †Eumysops laeviplicatus
  • †Eumysops parodii
  • †Eumysops sp.
• †Eunotia
  • †Eunotia sp.
• †Euphractus
  • †Euphractus patagonicus – or unidentified comparable form
  • †Euphractus patagonicus
• †Eupsophus
  • †Eupsophus sp.
• †Eurhomalea – tentative report
• †Eurhomalea
  • †Eurhomalea difficilis
  • †Eurhomalea exalbida
  • †Eurhomalea fuenzalidai – or unidentified comparable form
• †Eurygenium – type locality for genus
  • †Eurygenium latirostris – type locality for species
• †Eurystephanodon
  • †Eurystephanodon cattanii – type locality for species
  • †Eurystephanodon crassatus – type locality for species
• †Euspira
  • †Euspira pueyrredonensis – or unidentified comparable form
  • †Euspira santacruzensis
  • †Euspira sp.
• †Eutatus
  • †Eutatus carinatus
  • †Eutatus deleo
  • †Eutatus lagena
  • †Eutatus seguini – or unidentified comparable form
  • †Eutatus seguini
  • †Eutatus sp.
• †Eutelornis
  • †Eutelornis patagonicus
• †Eutomodus
  • †Eutomodus elautus
• †Eutrachytherus
  • †Eutrachytherus grandis – type locality for species
• †Eutrephoceras
  • †Eutrephoceras sp.
• †Eutrochodon – type locality for genus
  • †Eutrochodon inceptus – type locality for species
• †Euxylophoroxylon – type locality for genus
  • †Euxylophoroxylon chiquichanense – type locality for species
• †Evolestes
  • †Evolestes sp.
• †Fagara
  • †Fagara serrata – type locality for species
• †Fagnanoa
  • †Fagnanoa dubiosa
• †Fagnonoa
  • †Fagnonoa aequistriata
• †Fagophyllum
  • †Fagophyllum duseni – type locality for species
  • †Fagophyllum duseni
• †Fagus
  • †Fagus dicksoni
  • †Fagus integrifolia
  • †Fagus subferruginea
  • †Fagus subferrunginea
• †Fannia
  • †Fannia sp.
• †Faramea
  • †Faramea miocenica – type locality for species
• †Faveasporis
  • †Faveasporis areapunctatis
• †Favitricolpites
  • †Favitricolpites australis – type locality for species
• †Favitricolporites
  • †Favitricolporites australis – type locality for species
  • †Favitricolporites australis
• †Felis
  • †Felis listai
• †Ficus
  • †Ficus carolina
  • †Ficus distans
  • †Ficus patagonica – type locality for species
  • †Ficus posadasensis
  • †Ficus sp.
  • †Ficus tressensii
• †Fieratherium – type locality for genus
  • †Fieratherium sorex – type locality for species
• †Filicites
  • †Filicites sp.
• †Fissurella
  • †Fissurella oriens
  • †Fissurella picta
  • †Fissurella radiosa
  • †Fissurella sp.
• †Fissurellidea
  • †Fissurellidea hiantula – or unidentified related form
• †Fitzroya
  • †Fitzroya tertiaria – type locality for species
  • †Fitzroya tertiaria
• †Flabellipecten
  • †Flabellipecten pyramidesensis
• †Flabellum
  • †Flabellum cuneiforme – or unidentified comparable form
  • †Flabellum sp.
• †Florentinoameghinia – type locality for genus
• †Florentinoameghinia
  • †Florentinoameghinia mystica – type locality for species
  • †Florentinoameghinia mystica
• †Foetopterus – type locality for genus
  • †Foetopterus ambiguus – type locality for species
• †Forcipites
  • †Forcipites longus – or unidentified comparable form
• †Foveosporites
  • †Foveosporites lacunosus – or unidentified comparable form
• †Foveotriletes
  • †Foveotriletes microfoveolatus
  • †Foveotriletes palaequetrus – or unidentified comparable form
  • †Foveotriletes palaequetrus
  • †Foveotriletes parvirectus – or unidentified comparable form
• †Frenguellia – type locality for genus
• †Frenguellia
  • †Frenguellia iglesiasi – type locality for species
  • †Frenguellia patagonica – type locality for species
• †Fuchsia
  • †Fuchsia sp.
• †Fuegotrophon
  • †Fuegotrophon asperum
  • †Fuegotrophon flinti
  • †Fuegotrophon turneri
• †Fusimitra
  • †Fusimitra carlosi
• †Fusinus
  • †Fusinus patagoniensis – type locality for species
  • †Fusinus sp.
• †Fyfea
  • †Fyfea beui
  • †Fyfea lirata
  • †Fyfea sp.
• †Gabonisporis
  • †Gabonisporis vigourouxii
• †Gaffneylania – type locality for genus
  • †Gaffneylania auricularis – type locality for species
• †Gaimanomys – type locality for genus
  • †Gaimanomys alwinea – type locality for species
• †Gaimanophis – type locality for genus
  • †Gaimanophis tenuis – type locality for species
• †Galea
  • †Galea musteloides
  • †Galea sp.
• †Galeocerdo
  • †Galeocerdo aduncus
• †Galeodea – or unidentified related form
  • †Galeodea mirabilis
• †Galictis
  • †Galictis sorgentini
• †Galileomys – type locality for genus
• †Galileomys
  • †Galileomys antelucanus – type locality for species
  • †Galileomys antelucanus
  • †Galileomys baios – type locality for species
  • †Galileomys colloncurensis – type locality for species
  • †Galileomys eurygnathus – type locality for species
  • †Galileomys eurygnathus
• †Gamerroides
  • †Gamerroides psilasaccus – or unidentified comparable form
• †Gamerroites
  • †Gamerroites psilasaccus – or unidentified comparable form
  • †Gamerroites psilasaccus
  • †Gamerroites psilassacus
• †Gari – tentative report
  • †Gari sp.
• †Garridomys – type locality for genus
  • †Garridomys curunuquem – type locality for species
• †Gashternia – type locality for genus
• †Gashternia
  • †Gashternia ctalehor – type locality for species
  • †Gashternia ctalehor
  • †Gashternia sp.
• †Gastrochaenolites
  • †Gastrochaenolites sp.
• †Gauthieria
  • †Gauthieria menuthiae
• †Gelasinicysta
  • †Gelasinicysta vangeelii
• †Gemmatricolpites
  • †Gemmatricolpites sp. 1informal
  • †Gemmatricolpites subsphaericus – type locality for species
  • †Gemmatricolpites subsphaericus – or unidentified comparable form
  • †Gemmatricolpites subsphaericus
• †Genotia – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Genotia cruzensis
• †Geochelone
  • †Geochelone gringorum – type locality for species
  • †Geochelone gringorum
  • †Geochelone sp.
• †Gibbula
  • †Gibbula dalli
  • †Gibbula diametralis
  • †Gibbula iheringi
  • †Gibbula margaritoides
  • †Gibbula philippi
• †Ginkgo
  • †Ginkgo patagonica
• †Gleicheniidites
  • †Gleicheniidites argentinus – or unidentified comparable form
  • †Gleicheniidites cercinidites
  • †Gleicheniidites circinidites
  • †Gleicheniidites senonicus
  • †Gleicheniidites sp.
• †Glencopollis
  • †Glencopollis ornatus
• †Globanomalina
  • †Globanomalina planocompressa
• †Globicephala
  • †Globicephala macrorhynchus
• †Glossotheriopsis – type locality for genus
  • †Glossotheriopsis pascuali – type locality for species
• †Glossotherium
  • †Glossotherium emmersoni – type locality for species
  • †Glossotherium myloides
  • †Glossotherium robustum
  • †Glossotherium sp.
• †Glycymeris
  • †Glycymeris camaronesia – or unidentified comparable form
  • †Glycymeris camaronesia
  • †Glycymeris cuevensis – or unidentified comparable form
  • †Glycymeris cuevensis
  • †Glycymeris feruglioi – or unidentified comparable form
  • †Glycymeris ibari – or unidentified comparable form
  • †Glycymeris ibari
  • †Glycymeris longioriformis – type locality for species
  • †Glycymeris magna – type locality for species
  • †Glycymeris magna
  • †Glycymeris pseudocuevensis
  • †Glycymeris sp.
• †Glyphithyreus – tentative report
  • †Glyphithyreus wichmanni – type locality for species
  • †Glyphithyreus wichmanni
• †Glyptatelus
  • †Glyptatelus fractus – type locality for species
• †Glyptoactis
  • †Glyptoactis inaequalis
• †Glyptodon
  • †Glyptodon clavipes
  • †Glyptodon munizi
  • †Glyptodon perforatus
  • †Glyptodon reticulatus – or unidentified comparable form
  • †Glyptodon reticulatus
  • †Glyptodon rudimentarius
  • †Glyptodon sp.
• †Glyptodontidarum
  • †Glyptodontidarum sp.
• †Gmelinmagas – tentative report
• †Gmelinmagas
  • †Gmelinmagas plicata
  • †Gmelinmagas sp.
• †Goeppertia
  • †Goeppertia ovalifolia
• †Gomphechinus
  • †Gomphechinus sp.
• †Gomphrenipollis
  • †Gomphrenipollis sp.
• †Goniopteris
  • †Goniopteris patagoniana – type locality for species
• †Gothanipollis
  • †Gothanipollis bassensis
• †Graminidites
  • †Graminidites media
  • †Graminidites sp.
  • †Graminidites spp.
• †Grammatodon
  • †Grammatodon sulcatinus
• †Grampus
  • †Grampus griseus
• †Granodiporites
  • †Granodiporites nebulosus
• †Gregariella
  • †Gregariella amara – type locality for species
• †Greniodon – type locality for genus
  • †Greniodon sylvaticus – type locality for species
• †Griphotherion – type locality for genus
  • †Griphotherion peiranoi – type locality for species
• †Groeberia – type locality for genus
• †Groeberia
  • †Groeberia minoprioi – type locality for species
  • †Groeberia pattersoni – type locality for species
• †Gruipeda
  • †Gruipeda dominguensis – type locality for species
  • †Gruipeda dominguensis
• †Gryllites
  • †Gryllites vocalis – type locality for species
• †Gryllus
  • †Gryllus vociferans – type locality for species
• †Gryphaeostrea
  • †Gryphaeostrea callophyla
  • †Gryphaeostrea callophylla
• †Grypolophodon – type locality for genus
• †Grypolophodon
  • †Grypolophodon imperfectus – type locality for species
  • †Grypolophodon morenoi – type locality for species
  • †Grypolophodon tuberculosis – type locality for species
• †Gryposuchus
  • †Gryposuchus neogaeus
• †Gualta – type locality for genus
  • †Gualta cuyana – type locality for species
• †Guggenheimia
  • †Guggenheimia crocheti
• †Guilielmofloweria – type locality for genus
  • †Guilielmofloweria plicata – type locality for species
• †Guilielmoscottia – type locality for genus
• †Guilielmoscottia
  • †Guilielmoscottia plicifera – type locality for species
  • †Guilielmoscottia plicifera
  • †Guilielmoscottia sp.
• †Guiomys
  • †Guiomys unica
• †Gunnera
  • †Gunnera chilensis – or unidentified related form
  • †Gunnera magellanica – or unidentified related form
  • †Gunnera sp.
• †Gymnogeophagus
  • †Gymnogeophagus eocenicus – type locality for species
• †Gymnostoma
  • †Gymnostoma sp.
  • †Gymnostoma spp.
• †Gyremys – or unidentified comparable form
  • †Gyremys sp.
• †Gyriabrus
  • †Gyriabrus sp.
• †Gyrocochlea
  • †Gyrocochlea sp.
• †Gyroidinoides
  • †Gyroidinoides nitidus
• †Hadriania – report made of unidentified related form or using admittedly obsolete nomenclature
• †Hadriania
  • †Hadriania jorgensis
• †Haimesiastraea
  • †Haimesiastraea conferta
• †Haloragacidites
  • †Haloragacidites harrisii
  • †Haloragacidites myriophylloides
  • †Haloragacidites trioratus
• †Haloragracidites
  • †Haloragracidites trioratus
• †Hapalops – or unidentified comparable form
• †Hapalops
  • †Hapalops angustipalatus
  • †Hapalops elongatus
  • †Hapalops indifferens
  • †Hapalops longiceps
  • †Hapalops platycephalus
  • †Hapalops ponderosus – type locality for species
  • †Hapalops sp.
  • †Hapalops sp. 1informal
  • †Hapalops sp. 2informal
• †Haplodontherium
  • †Haplodontherium limun
• †Haplomastodon
  • †Haplomastodon sp.
• †Haplostropha
  • †Haplostropha sp.
• †Haruspex – tentative report
  • †Haruspex defectus
• †Hedecardium – report made of unidentified related form or using admittedly obsolete nomenclature
• †Hedecardium
  • †Hedecardium patagonicum
  • †Hedecardium philippi
  • †Hedecardium sp. 1informal
  • †Hedecardium sp. 2informal
• †Hedralophus – type locality for genus
  • †Hedralophus bicostatus – type locality for species
• †Hegetotheriopsis
  • †Hegetotheriopsis sulcatus
• †Hegetotherium
  • †Hegetotherium mirabile
  • †Hegetotherium sp.
• †Helix
  • †Helix dentata
• †Hemiauchenia – or unidentified comparable form
• †Hemiauchenia
  • †Hemiauchenia paradoxa
  • †Hemiauchenia sp.
• †Hemihegetotherium
  • †Hemihegetotherium lazai
  • †Hemihegetotherium robustum
  • †Hemihegetotherium torresi – or unidentified comparable form
• †Hemipristis
  • †Hemipristis serra
• †Henricofilholia
  • †Henricofilholia lustrata – type locality for species
  • †Henricofilholia vucetichia – type locality for species
• †Henricosbornia – type locality for genus
• †Henricosbornia – tentative report
• †Henricosbornia
  • †Henricosbornia ampla – type locality for species
  • †Henricosbornia ampla
  • †Henricosbornia lophodonta – type locality for species
  • †Henricosbornia lophodonta – tentative report
  • †Henricosbornia lophodonta
  • †Henricosbornia minuta – type locality for species
  • †Henricosbornia sp.
  • †Henricosbornia waitehor – type locality for species
• †Hercoglossa
  • †Hercoglossa rionegrensis
  • †Hercoglossa romeroi
  • †Hercoglossa walteri – or unidentified related form
• †Herkosporites
  • †Herkosporites elliottii
• †Herpailurus
  • †Herpailurus yaguaroundi – or unidentified comparable form
• †Heteraulacysta
  • †Heteraulacysta campanula
• †Heterodontus
  • †Heterodontus sp.
• †Heteroglyphis – type locality for genus
  • †Heteroglyphis dewoletzky – type locality for species
• †Heterolophodon – type locality for genus
  • †Heterolophodon ampliatus – type locality for species
• †Heteroterma
  • †Heteroterma elegans
  • †Heteroterma sp. Ainformal
  • †Heteroterma tumida – or unidentified comparable form
• †Hexacorbula
  • †Hexacorbula caduca – type locality for species
• †Hexanchus
  • †Hexanchus griseus
• †Hiatella
  • †Hiatella arctica
  • †Hiatella solida
• †Hippidion
  • †Hippidion chapalmalensis
  • †Hippidion devillei
  • †Hippidion principale
  • †Hippidion saldiasi
  • †Hippidion sp.
• †Hipponix
  • †Hipponix costata
  • †Hipponix flechensis
  • †Hipponix oligocostata
• †Hoffmannia
  • †Hoffmannia protogaea
  • †Hoffmannia protogea
• †Holochilus
  • †Holochilus brasiliensis
• †Holozaedyus
  • †Holozaedyus laevisculptus
• †Homalodontotherium
  • †Homalodontotherium sp.
• †Homalodotherium
  • †Homalodotherium cunninghami
• †Homalostylops
  • †Homalostylops interlissus – type locality for species
  • †Homalostylops parvus – type locality for species
  • †Homalostylops parvus
  • †Homalostylops sp.
• †Homarus
  • †Homarus meridionalis
• †Homunculus – type locality for genus
• †Homunculus
  • †Homunculus patagonicus – type locality for species
  • †Homunculus patagonicus
  • †Homunculus sp.
• †Hondonadia
  • †Hondonadia fierroensis – or unidentified comparable form
  • †Hondonadia parca – type locality for species
  • †Hondonadia praecipitia – type locality for species
  • †Hondonadia pumila – type locality for species
  • †Hondonadia pumila – or unidentified comparable form
  • †Hondonadia sp.
• †Hoploparia
  • †Hoploparia arbei – or unidentified comparable form
• †Hoplophorus
  • †Hoplophorus sp.
  • †Hoplophorus verus
• †Huncoaeshna – type locality for genus
  • †Huncoaeshna corrugata – type locality for species
• †Hydrangea – tentative report
  • †Hydrangea incerta – type locality for species
  • †Hydrangea incerta
• †Hydrangeiphyllum
  • †Hydrangeiphyllum affine
• †Hydraspis – tentative report
  • †Hydraspis arenarius – type locality for species
• †Hydrochoeropsis
  • †Hydrochoeropsis dasseni
  • †Hydrochoeropsis fontanai
• †Hydrochoerus – type locality for genus
• †Hydrochoerus
  • †Hydrochoerus ballesterensis – type locality for species
  • †Hydrochoerus sp.
• †Hydromedusa
  • †Hydromedusa casamayorensis – or unidentified comparable form
  • †Hydromedusa tectifera
• †Hydrurga
  • †Hydrurga leptonyx
• †Hypechinus
  • †Hypechinus patagonensis
• †Hyperdidelphys
  • †Hyperdidelphys inexpectata
  • †Hyperdidelphys pattersoni
• †Hyperleptus – or unidentified comparable form
• †Hyperleptus
  • †Hyperleptus sp.
• †Hyperoodon
  • †Hyperoodon planifrons
• †Hypocixius – type locality for genus
  • †Hypocixius oblitescens – type locality for species
• †Hypsosteiromys
  • †Hypsosteiromys axiculus – type locality for species
  • †Hypsosteiromys nectus – type locality for species
  • †Hypsosteiromys sp.
• †Hystichokolpoma
  • †Hystichokolpoma sp.
• †Icica
  • †Icica pichileufuana – type locality for species
  • †Icica tertiaria – type locality for species
• †Ideodelphys – type locality for genus
• †Ideodelphys
  • †Ideodelphys microscopicus – type locality for species
  • †Ideodelphys microscopicus
• †Idiorophus
  • †Idiorophus patagonicus – type locality for species
• †Iheringiella
  • †Iheringiella patagonensis
  • †Iheringiella sp.
• †Iheringinucula
  • †Iheringinucula crassirugata
  • †Iheringinucula sp.
  • †Iheringinucula tricesima
• †Iheringithyris
  • †Iheringithyris ameghinoi
• †Ilchunaia – type locality for genus
  • †Ilchunaia parva – type locality for species
• †Ilexpollenites
  • †Ilexpollenites clifdenensis
• †Ilynassa
  • †Ilynassa sp.
• †Inacayalestes – type locality for genus
  • †Inacayalestes aikunhuapi – type locality for species
• †Inapertisporites
  • †Inapertisporites sp. Ainformal
  • †Inapertisporites spp.
• †Inaperturopollenites
  • †Inaperturopollenites hiatus
  • †Inaperturopollenites sp.
  • †Inaperturopollenites sp. Einformal
• †Incamys
  • †Incamys bolivianus
  • †Incamys menniorum – type locality for species
• †Indalecia – type locality for genus
  • †Indalecia grandensis – type locality for species
• †Inga
  • †Inga patagonica – type locality for species
• †Integritetradites
  • †Integritetradites sp.
• †Interatherium
  • †Interatherium excavatum
  • †Interatherium extensum
  • †Interatherium robustum
  • †Interatherium robustus
  • †Interatherium sp.
• †Interhippus – type locality for genus
  • †Interhippus deflexus – type locality for species
• †Interlobulites
  • †Interlobulites sp.
  • †Interlobulites variabilis – or unidentified comparable form
  • †Interlobulites variabilis
• †Intratriporopollenites
  • †Intratriporopollenites sp.
• †Ischyosporites
  • †Ischyosporites sp.
• †Ischyrorhynchus – type locality for genus
  • †Ischyrorhynchus vanbenedeni – type locality for species
• †Isechinus
  • †Isechinus praecursor
• †Iselica
  • †Iselica dessantii
• †Isoetes
  • †Isoetes savatieri – or unidentified related form
• †Isognomon
  • †Isognomon quadrisulcata
  • †Isognomon sp.
  • †Isognomon valvanoi
• †Isolophodon
  • †Isolophodon aplanatus – type locality for species
• †Isostylomys
  • †Isostylomys sp.
• †Isostylops
  • †Isostylops fretus – type locality for species
• †Isotemnus – type locality for genus
• †Isotemnus – tentative report
• †Isotemnus
  • †Isotemnus colhuehuapiensis – type locality for species
  • †Isotemnus consummatus – type locality for species
  • †Isotemnus ctalego – type locality for species
  • †Isotemnus haugi – type locality for species
  • †Isotemnus latidens – type locality for species
  • †Isotemnus latidens
  • †Isotemnus primitivus – type locality for species
  • †Isotemnus primitivus – tentative report
  • †Isotemnus primitivus – or unidentified comparable form
  • †Isotemnus primitivus
  • †Isotemnus sp. – type locality for species
  • †Isotemnus sp.
• †Isotypotherium – type locality for genus
  • †Isotypotherium annulatum – type locality for species
• †Itaboraidelphys – or unidentified comparable form
  • †Itaboraidelphys sp.
• †Itaboraitherium
  • †Itaboraitherium sp.
• †Jagolucina
  • †Jagolucina psephenata
• †Jorgechlamys
  • †Jorgechlamys centralis
  • †Jorgechlamys juliana
• †Josepholeidya
  • †Josepholeidya adunca – type locality for species
  • †Josepholeidya adunca
  • †Josepholeidya deculca – type locality for species
• †Jujusia – type locality for genus
  • †Jujusia maizgorda – type locality for species
• †Jussitriporites
  • †Jussitriporites menendezii – type locality for species
• †Kawas – type locality for genus
  • †Kawas benegasorum – type locality for species
• †Kawasphenodon
  • †Kawasphenodon peligrensis – type locality for species
• †Kelenken – type locality for genus
  • †Kelenken guillermoi – type locality for species
• †Kentriodon – or unidentified comparable form
  • †Kentriodon sp.
• †Kibenikhoria – type locality for genus
• †Kibenikhoria
  • †Kibenikhoria get – type locality for species
  • †Kibenikhoria sp.
• †Klohnia
  • †Klohnia major – type locality for species
  • †Klohnia major – or unidentified comparable form
• †Klukisporites
  • †Klukisporites sp.
  • †Klukisporites variegatus
• †Knightia
  • †Knightia andreae
• †Kraglievichia
  • †Kraglievichia paranense
  • †Kraglievichia sp.
• †Kramadolops
  • †Kramadolops fissuratus – type locality for species
  • †Kramadolops maximus – type locality for species
  • †Kramadolops mayoi – type locality for species
  • †Kramadolops mayoi
• †Labrodon
  • †Labrodon sp.
• †Lacrimaesporonites
  • †Lacrimaesporonites spp.
• †Lacrimasporonites
  • †Lacrimasporonites sp.
• †Lactoris
  • †Lactoris sp.
• †Laevicardium
  • †Laevicardium sp.
• †Laevidentalium
  • †Laevidentalium feruglioi
• †Laevigatosporites
  • †Laevigatosporites ovatus
  • †Laevigatosporites sp. Ainformal
• †Laevilitorina
  • †Laevilitorina caliginosa
• †Lafkenia – type locality for genus
• †Lafkenia
  • †Lafkenia schmidti – type locality for species
  • †Lafkenia sulcifera – type locality for species
• †Lagopterus – type locality for genus
  • †Lagopterus minutus – type locality for species
• †Lagostomus
  • †Lagostomus euplasius
  • †Lagostomus incises
  • †Lagostomus maximus
  • †Lagostomus pretrichodactyla – or unidentified comparable form
  • †Lagostomus sp.
• †Lahilla
  • †Lahilla patagonica
• †Lahillia
  • †Lahillia angulata – or unidentified comparable form
  • †Lahillia angulata
  • †Lahillia gigantea
  • †Lahillia patagonica
• †Lama
  • †Lama glama
  • †Lama gracilis
  • †Lama guanicoe
  • †Lama sp.
• †Lambdaconus – type locality for genus
• †Lambdaconus
  • †Lambdaconus elegans – type locality for species
  • †Lambdaconus suinus – type locality for species
• †Lammuastacus – type locality for genus
• †Lammuastacus
  • †Lammuastacus longirostris – type locality for species
  • †Lammuastacus longirostris
• †Lamna
  • †Lamna amplibasidens
  • †Lamna serridens
  • †Lamna totuserrata
  • †Lamna unicuspidens
• †Landolphia
  • †Landolphia paraparaensis – type locality for species
• †Larus
  • †Larus spp.
• †Lasaea
  • †Lasaea sp.
• †Laternula
  • †Laternula sp.
• †Latibasalia – type locality for genus
• †Latibasalia
  • †Latibasalia elongata – type locality for species
  • †Latibasalia quispeae – type locality for species
• †Laurelia
  • †Laurelia amarillana – type locality for species
• †Laurophyllum
  • †Laurophyllum chalianum – type locality for species
  • †Laurophyllum chubutensis – type locality for species
  • †Laurophyllum chubutensis
  • †Laurophyllum piatnitzkyi – type locality for species
  • †Laurophyllum piatnitzkyi
• †Lebia
  • †Lebia harrelli – type locality for species
• †Ledina
  • †Ledina lepida
• †Leguminosites
  • †Leguminosites calliandraformis – type locality for species
  • †Leguminosites patagonicus – type locality for species
  • †Leguminosites sp.
• †Leiosaurus
  • †Leiosaurus marellii – type locality for species
• †Leiosphaeridia
  • †Leiosphaeridia hyalina
  • †Leiosphaeridia sp.
• †Leiotriletes
  • †Leiotriletes regularis – or unidentified comparable form
  • †Leiotriletes regularis
  • †Leiotriletes sp.
• †Lejeunecysta
  • †Lejeunecysta communis
  • †Lejeunecysta globosa
  • †Lejeunecysta pulchra
  • †Lejeunecysta spp.
• †Lemudeus – type locality for genus
  • †Lemudeus angustidens – type locality for species
• †Lentinia
  • †Lentinia sp.
• †Leontinia – tentative report
• †Leontinia
  • †Leontinia freqens
  • †Leontinia gaudryi – tentative report
  • †Leontinia gaudryi – or unidentified comparable form
  • †Leontinia gaudryi
  • †Leontinia sp.
• †Leopardus
  • †Leopardus vorohuensis – type locality for species
• †Lepidobatrachus
  • †Lepidobatrachus laevis
• †Lepidosiren
  • †Lepidosiren paradoxa
• †Leptodactylus
  • †Leptodactylus sp.
• †Leptolepidites
  • †Leptolepidites densus – type locality for species
  • †Leptolepidites major
  • †Leptolepidites sp.
• †Leptolobium
  • †Leptolobium prenitens – type locality for species
• †Leptoptilos
  • †Leptoptilos patagonicus – type locality for species
• †Leptorramphus – type locality for genus
  • †Leptorramphus entrerrianus – type locality for species
• †Lepus
  • †Lepus europaeus
• †Lestodelphys
  • †Lestodelphys halli – or unidentified comparable form
  • †Lestodelphys halli
  • †Lestodelphys juga – or unidentified comparable form
  • †Lestodelphys sp.
• †Lestodon
  • †Lestodon armatus
  • †Lestodon castellanosi – tentative report
  • †Lestodon gaudryi
  • †Lestodon sp.
  • †Lestodon trigonidens
• †Leucokephalos – type locality for genus
  • †Leucokephalos zeffiae – type locality for species
• †Leukoma – tentative report
• †Leukoma
  • †Leukoma argentina
  • †Leukoma darwini
  • †Leukoma meridionalis
  • †Leukoma sp.
• †Lewalanipollis
  • †Lewalanipollis senectus
  • †Lewalanipollis sp.
• †Liarthrus – type locality for genus
• †Liarthrus
  • †Liarthrus copei – type locality for species
  • †Liarthrus copei
• †Libocedrus
  • †Libocedrus prechilensis – type locality for species
• †Licaphrium
  • †Licaphrium floweri
  • †Licaphrium mesopotamiense
• †Licaphrops
  • †Licaphrops festinus
• †Liliacidites
  • †Liliacidites regularis – type locality for species
  • †Liliacidites regularis
  • †Liliacidites sp. 1informal
  • †Liliacidites sp. 2informal
  • †Liliacidites spp.
  • †Liliacidites variegatus
  • †Liliacidites vermireticulatus
• †Lilloiconcha
  • †Lilloiconcha sp.
• †Lima
  • †Lima sp.
• †Limaria
  • †Limaria patagonia
  • †Limaria patagonica
• †Limatula
  • †Limatula cossmanni
  • †Limatula pisum
  • †Limatula pygmaea
• †Limopsis
  • †Limopsis insolita – or unidentified comparable form
  • †Limopsis insolita
  • †Limopsis patagoniensis
  • †Limopsis sp.
• †Lingulodinium
  • †Lingulodinium hemicystum
• †Linthia
  • †Linthia gaudryii – type locality for species
• †Liotia
  • †Liotia terrugii
• †Liptornis
  • †Liptornis hesternus
• †Liquidambarpollenites
  • †Liquidambarpollenites brandonensis – or unidentified comparable form
  • †Liquidambarpollenites brandonensis
• †Lissarca
  • †Lissarca miliaris
• †Lissodelphis
  • †Lissodelphis peronii
• †Lithophaga
  • †Lithophaga exilis – or unidentified comparable form
  • †Lithophaga ostricola
  • †Lithophaga patagonicus
• †Litodontomys – type locality for genus
• †Litodontomys
  • †Litodontomys chubutensis – type locality for species
  • †Litodontomys chubutensis
• †Littoraria
  • †Littoraria nebulosa
• †Littoridina
  • †Littoridina sp.
• †Littorina
  • †Littorina gigantea
  • †Littorina piramidesia
  • †Littorina saxatilis
  • †Littorina ziczac – or unidentified related form
• †Llankibatrachus – type locality for genus
• †Llankibatrachus
  • †Llankibatrachus truebae – type locality for species
  • †Llankibatrachus truebae
• †Llitun – type locality for genus
  • †Llitun notuca – type locality for species
• †Lobonotus
  • †Lobonotus lobulata – type locality for species
  • †Lobonotus lobulata
• †Lomaphorelus – type locality for genus
  • †Lomaphorelus depstus – type locality for species
• †Lomaphorops
  • †Lomaphorops corallinus
• †Lomatia
  • †Lomatia hirsuta
  • †Lomatia occidentalis
  • †Lomatia patagonica
  • †Lomatia preferruginea – type locality for species
  • †Lomatia preferruginea
• †Lomatites
  • †Lomatites occidentalis – type locality for species
• †Loncolicu – type locality for genus
  • †Loncolicu tretos – type locality for species
• †Longapertites
  • †Longapertites andreisii – type locality for species
  • †Longapertites andreisii
  • †Longapertites patagonicus – type locality for species
  • †Longapertites patagonicus
  • †Longapertites sp.
  • †Longapertites vaneendenburgi – or unidentified related form
  • †Longapertites vaneendenburgi – or unidentified comparable form
• †Lontra
  • †Lontra longicaudis
• †Lopha
  • †Lopha radiata
• †Lophiodonticulus – type locality for genus
• †Lophiodonticulus
  • †Lophiodonticulus patagonicus – type locality for species
  • †Lophiodonticulus retroversus – type locality for species
• †Lophosoria
  • †Lophosoria sp.
• †Lorosuchus – type locality for genus
  • †Lorosuchus nodosus – type locality for species
• †Loxornis
  • †Loxornis clivus
• †Luantus
  • †Luantus initialis
  • †Luantus minor – type locality for species
  • †Luantus propheticus – type locality for species
  • †Luantus propheticus
  • †Luantus sp. nov. – tentative reportinformal
  • †Luantus toldensis – type locality for species
  • †Luantus toldensis
• †Lucapinella
  • †Lucapinella eurytreta
• †Lucina – tentative report
• †Lucina – report made of unidentified related form or using admittedly obsolete nomenclature
• †Lucina
  • †Lucina crucialis
  • †Lucina dalli
  • †Lucina neglecta – or unidentified comparable form
  • †Lucina neglecta
  • †Lucina ortmanni
  • †Lucina sp.
• †Lucinisca
  • †Lucinisca sp.
• †Lucinoma
  • †Lucinoma promaucana
• †Lucinopsis
  • †Lucinopsis concentricum
• †Lumbrerasaurus – type locality for genus
  • †Lumbrerasaurus scagliai – type locality for species
• †Lumbreratherium – type locality for genus
  • †Lumbreratherium oblitum – type locality for species
• †Lunatia
  • †Lunatia constricta – or unidentified comparable form
  • †Lunatia pueyrredonensis
• †Lundomys
  • †Lundomys sp.
• †Lutraria
  • †Lutraria sp.
  • †Lutraria vetula – or unidentified comparable form
• †Lutreolina
  • †Lutreolina crassicaudata – or unidentified comparable form
  • †Lutreolina sp.
• †Lycopodium
  • †Lycopodium sp.
• †Lycopodiumsporites
  • †Lycopodiumsporites austroclavatidites
  • †Lycopodiumsporites eminulus – or unidentified comparable form
  • †Lycopodiumsporites eminulus
  • †Lycopodiumsporites spp.
• †Lycopsis – type locality for genus
• †Lycopsis
  • †Lycopsis torresi – type locality for species
  • †Lycopsis torresi
  • †Lycopsis viverensis – type locality for species
• †Lygistepollenites
  • †Lygistepollenites florinii
• †Lymingtonia
  • †Lymingtonia sp.
• †Lyncodon
  • †Lyncodon patagonicus
• †Lyria – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Lyria dalli
• †Macanopsis
  • †Macanopsis sp.
• †Macaranga – or unidentified comparable form
  • †Macaranga TY046informal
• †Machlydotherium – type locality for genus
• †Machlydotherium – tentative report
• †Machlydotherium
  • †Machlydotherium asperum – type locality for species
  • †Machlydotherium asperum
  • †Machlydotherium ater – type locality for species
  • †Machlydotherium ater
  • †Machlydotherium intortum – type locality for species
  • †Machlydotherium sparsum – type locality for species
• †Macoma
  • †Macoma perplana
• †Macrahinga
  • †Macrahinga paranensis
• †Macrauchenia – tentative report
• †Macrauchenia
  • †Macrauchenia latidens
  • †Macrauchenia patagonica
  • †Macrauchenia sp.
• †Macraucheniopsis
  • †Macraucheniopsis ensenadensis
• †Macrauchenopsis – tentative report
  • †Macrauchenopsis ensenadensis
• †Macrocavia
  • †Macrocavia simpsoni
• †Macrochorobates
  • †Macrochorobates chapadmalensis
  • †Macrochorobates scalabrinii
• †Macroeuphractus
  • †Macroeuphractus australis
  • †Macroeuphractus morenoi – or unidentified comparable form
  • †Macroeuphractus morenoi
  • †Macroeuphractus retusus
  • †Macroeuphractus scalabrini
• †Mactra – tentative report
• †Mactra
  • †Mactra darwini
  • †Mactra garreti
  • †Mactra indistincta
  • †Mactra isabelleana
  • †Mactra patagonica – or unidentified comparable form
  • †Mactra patagonica
  • †Mactra steinmanni – or unidentified related form
• †Mactromeris
  • †Mactromeris longa – type locality for species
• †Maddenia – type locality for genus
  • †Maddenia lapidaria – type locality for species
• †Madrepora
  • †Madrepora sp.
• †Madrynornis – type locality for genus
  • †Madrynornis mirandus – type locality for species
• †Madtsoia – type locality for genus
• †Madtsoia – tentative report
• †Madtsoia
  • †Madtsoia bai – type locality for species
  • †Madtsoia bai – or unidentified comparable form
  • †Madtsoia sp.
• †Magellania – report made of unidentified related form or using admittedly obsolete nomenclature
• †Magellania
  • †Magellania lenticularis
  • †Magellania sp.
• †Magnaperiporites
  • †Magnaperiporites sp.
• †Magnatica
  • †Magnatica hansi
• †Malletia
  • †Malletia rudis
• †Maluacipolloides
  • †Maluacipolloides comodonoensis
• †Malvacarpis – type locality for genus
  • †Malvacarpis tertiarius – type locality for species
• †Malvacarpus
  • †Malvacarpus guinazui – type locality for species
• †Malvacearumpollis
  • †Malvacearumpollis mannanensis
• †Malvaciphyllum
  • †Malvaciphyllum quenquiadensis
• †Malvacipollis
  • †Malvacipollis argenlina
  • †Malvacipollis argentina – type locality for species
  • †Malvacipollis argentina
  • †Malvacipollis comodoroensis
  • †Malvacipollis sp. 1informal
  • †Malvacipollis sp. 2informal
  • †Malvacipollis sp. 3informal
  • †Malvacipollis subtilis
• †Malvacipolloides
  • †Malvacipolloides comodoroensis
• †Margarella
  • †Margarella violacea
• †Margarita
  • †Margarita punctulata
• †Margarites
  • †Margarites striatus
• †Marginella – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Marginella deuterolivella
• †Margocolporites
  • †Margocolporites sp.
  • †Margocolporites sp.1informal
  • †Margocolporites tenuireticulatus
  • †Margocolporites vanwijhei
• †Marmosa
  • †Marmosa contrerasi – type locality for species
  • †Marmosa sp.
• †Marmosopsis
  • †Marmosopsis sp.
• †Martesia
  • †Martesia cazadoriana
• †Martinmiguelia – type locality for genus
  • †Martinmiguelia fernandezi – type locality for species
• †Maruchito – type locality for genus
  • †Maruchito trilofodonte – type locality for species
• †Mascagnia
  • †Mascagnia sepiumoides – type locality for species
• †Matayba
  • †Matayba marginatifolia – type locality for species
• †Mathilda
  • †Mathilda malvinarum – or unidentified related form
• †Matonisporites
  • †Matonisporites crassiangulatus
  • †Matonisporites equiexinus
  • †Matonisporites ornamentalis
  • †Matonisporites sp.
• †Maxschlosseria
  • †Maxschlosseria anatoma – type locality for species
  • †Maxschlosseria consumata – type locality for species
  • †Maxschlosseria consumata
  • †Maxschlosseria expansa – type locality for species
  • †Maxschlosseria minima – type locality for species
  • †Maxschlosseria minima
  • †Maxschlosseria minuta – type locality for species
  • †Maxschlosseria minuta
  • †Maxschlosseria praeterita – type locality for species
  • †Maxschlosseria praeterita
  • †Maxschlosseria rusticula – type locality for species
  • †Maxschlosseria rusticula
  • †Maxschlosseria septa – type locality for species
• †Maytenus – or unidentified related form
• †Maytenus
  • †Maytenus ellipticus – type locality for species
  • †Maytenus latifolioides – type locality for species
  • †Maytenus latifolioides
  • †Maytenus spp.
• †Mazzonicebus – type locality for genus
  • †Mazzonicebus almendrae – type locality for species
• †Mazzoniphractus
  • †Mazzoniphractus ingens
• †Medistylus – type locality for genus
• †Medistylus
  • †Medistylus dorsatus – type locality for species
  • †Medistylus dorsatus
• †Megabradys – type locality for genus
• †Megabradys
  • †Megabradys darwini – type locality for species
  • †Megabradys darwini
• †Megalonychops
  • †Megalonychops primigenius
• †Megapaloelodus
  • †Megapaloelodus sp.
• †Megapiranha – type locality for genus
• †Megapiranha
  • †Megapiranha paranensis – type locality for species
  • †Megapiranha paranensis
• †Megascyliorhinus
  • †Megascyliorhinus trelewensis – type locality for species
  • †Megascyliorhinus trelewensis
• †Megastus
  • †Megastus sp.
• †Megatebennus
  • †Megatebennus pardelensis
• †Megathericulus
  • †Megathericulus patagonicus
• †Megatherium
  • †Megatherium americanum – or unidentified comparable form
  • †Megatherium americanum
  • †Megatherium sp.
  • †Megatherium tarijensis – or unidentified comparable form
  • †Megatherium uquiensis – tentative report
• †Melongena
  • †Melongena distans – or unidentified comparable form
  • †Melongena ventricosa – tentative report
• †Melosira
  • †Melosira sp.
• †Mendozahippus – type locality for genus
• †Mendozahippus – or unidentified comparable form
• †Mendozahippus
  • †Mendozahippus fierensis – type locality for species
  • †Mendozahippus fierensis
• †Menucoa
  • †Menucoa cazaui
• †Meretrix
  • †Meretrix antarctica
  • †Meretrix australis
  • †Meretrix chalcedonica
  • †Meretrix rothi
• †Mesembriornis
  • †Mesembriornis milneedwardsi
• †Mesembrioxylon
  • †Mesembrioxylon mazzonii – type locality for species
  • †Mesembrioxylon mazzonii
• †Mesotherium
  • †Mesotherium sp.
• †Mespilodaphne
  • †Mespilodaphne longifolia
• †Metacarcinus – tentative report
  • †Metacarcinus sp.
• †Metaxytherium
  • †Metaxytherium sp.
• †Meteutatus
  • †Meteutatus attonsus – type locality for species
  • †Meteutatus lagenaformis – or unidentified related form
  • †Meteutatus lagenaformis
  • †Meteutatus percarinatus – type locality for species
  • †Meteutatus percarinatus
  • †Meteutatus sp.
• †Metheutria
  • †Metheutria martensi
• †Metopotoxus
  • †Metopotoxus laevatus
• †Microbiotherium – type locality for genus
• †Microbiotherium
  • †Microbiotherium acicula – type locality for species
  • †Microbiotherium acicula
  • †Microbiotherium gallegosense – type locality for species
  • †Microbiotherium gallegosense – or unidentified comparable form
  • †Microbiotherium patagonicum – type locality for species
  • †Microbiotherium patagonicum
  • †Microbiotherium praecursor – type locality for species
  • †Microbiotherium sp.
  • †Microbiotherium tehuelchum – type locality for species
  • †Microbiotherium tehuelchum
• †Microcachrydites
  • †Microcachrydites antarcticus
• †Microcachryidites
  • †Microcachryidites antarcticus
• †Microcardiodon – type locality for genus
• †Microcardiodon – or unidentified comparable form
  • †Microcardiodon williensis – type locality for species
  • †Microcardiodon williensis
• †Microcavia
  • †Microcavia australis
  • †Microcavia robusta
  • †Microcavia sp.
• †Microdiscula – tentative report
  • †Microdiscula sp.
• †Microfoveolatosporis
  • †Microfoveolatosporis sp.
• †Microfoveolatosporites
  • †Microfoveolatosporites sp.
• †Micropsis
  • †Micropsis desori
• †Microthallites
  • †Microthallites sp.
• †Microtragulus
  • †Microtragulus catamarcensis
  • †Microtragulus rusconii – type locality for species
  • †Microtragulus rusconii
  • †Microtragulus sp.
• †Milfordia
  • †Milfordia argentina
  • †Milfordia sp.
• †Miomelon – report made of unidentified related form or using admittedly obsolete nomenclature
• †Miomelon
  • †Miomelon becki
  • †Miomelon gracilis – or unidentified comparable form
  • †Miomelon gracilis
  • †Miomelon gracilor
  • †Miomelon orbignyana
  • †Miomelon petersoni
• †Mirandatherium
  • †Mirandatherium sp.
• †Mirounga
  • †Mirounga leonina
• †Misodendrum
  • †Misodendrum spp.
• †Mixtipecten – or unidentified related form
  • †Mixtipecten sp.
• †Modiolarca
  • †Modiolarca prisca
• †Modiolus
  • †Modiolus ameghinoi
  • †Modiolus sp.
  • †Modiolus sp. Ainformal
  • †Modiolus sp. Binformal
  • †Modiolus thomsoni – or unidentified comparable form
• †Modiomytilus
  • †Modiomytilus pseudochorus
• †Molanna – tentative report
  • †Molanna derosa
• †Momipites
  • †Momipites dilatus
• †Momisia
  • †Momisia australia – type locality for species
• †Monodelphopsis
  • †Monodelphopsis sp.
• †Monogemmites
  • †Monogemmites gemmatus
• †Monolites
  • †Monolites alveolatus
• †Monophoraster
  • †Monophoraster darwini
• †Monosulcites
  • †Monosulcites minutiscabratus
  • †Monosulcites sp.
• †Monotrematum – type locality for genus
  • †Monotrematum sudamericanum – type locality for species
• †Morenelaphus – or unidentified comparable form
• †Morenelaphus
  • †Morenelaphus azpeitianus
  • †Morenelaphus lujanensis
  • †Morenelaphus sp.
• †Morenia
  • †Morenia sp.
• †Morenocetus – type locality for genus
  • †Morenocetus parvus – type locality for species
• †Mormopterus
  • †Mormopterus barrancae – type locality for species
• †Mougeotia
  • †Mougeotia laetevirens – or unidentified related form
  • †Mougeotia laetivirens – or unidentified related form
  • †Mougeotia sp. Tipo Ainformal
• †Mourasuchus – type locality for genus
  • †Mourasuchus arendsi – type locality for species
• †Mtchedlishvilia
  • †Mtchedlishvilia saltenia
• †Mulinia
  • †Mulinia edulis
• †Multicellaesporites
  • †Multicellaesporites spp.
• †Munida
  • †Munida casadioi
  • †Munida deangelii
  • †Munida sp.
• †Munizia
  • †Munizia paranensis
• †Muricingulisporis
  • †Muricingulisporis chenquensis
  • †Muricingulisporis chequensis
  • †Muricingulisporis verrucosus
• †Mutisiapollis
  • †Mutisiapollis patersonii
  • †Mutisiapollis sp.
  • †Mutisiapollis viteauensis
• †Mya
  • †Mya nucleoides
• †Mycrocachryidites
  • †Mycrocachryidites antarcticus
• †Myliobatis
  • †Myliobatis americanus
• †Mylodon
  • †Mylodon listai
  • †Mylodon sp.
• †Myocastor
  • †Myocastor coipus
  • †Myocastor columnaris
  • †Myocastor coypus
  • †Myocastor priscus
  • †Myocastor sp.
• †Myochlamys
  • †Myochlamys foyela
• †Myrceugenia
  • †Myrceugenia chubutense
  • †Myrceugenia sp.
  • †Myrceugenia tertiaria – type locality for species
• †Myrcia
  • †Myrcia chubutensis
  • †Myrcia deltiodea
  • †Myrcia nitens
  • †Myrcia obovata – type locality for species
  • †Myrcia reticulato-venosa
• †Myrciophyllum
  • †Myrciophyllum sp. 1informal
  • †Myrciophyllum sp. 2informal
  • †Myrciophyllum tucumanensis
• †Myrica – report made of unidentified related form or using admittedly obsolete nomenclature
• †Myrica
  • †Myrica chubutensis – type locality for species
  • †Myrica mira – type locality for species
  • †Myrica mira
  • †Myrica premira – type locality for species
  • †Myrica premira
• †Myriophyllum
  • †Myriophyllum sp.
• †Myristica – tentative report
  • †Myristica fossilis
• †Myrtaceidites
  • †Myrtaceidites mesonesus
  • †Myrtaceidites sp.
  • †Myrtaceidites sp. Ainformal
  • †Myrtaceidites sp. Binformal
  • †Myrtaceidites verrucosus – or unidentified related form
  • †Myrtaceidites verrucosus
• †Myrtiphyllum
  • †Myrtiphyllum bagualense
• †Myrtipites
  • †Myrtipites sp.
• †Mysella
  • †Mysella miniuscula – or unidentified related form
• †Mytilus
  • †Mytilus edulis
  • †Mytilus sp.
  • †Mytilus trigonus
• †Nacella – report made of unidentified related form or using admittedly obsolete nomenclature
• †Nacella – or unidentified comparable form
• †Nacella
  • †Nacella deaurata – or unidentified related form
  • †Nacella deaurata
  • †Nacella delicatissima
  • †Nacella magellanica
  • †Nacella ovata
  • †Nacella sp.
• †Naiadochelys
  • †Naiadochelys patagonica – type locality for species
  • †Naiadochelys patagonica – or unidentified comparable form
• †Nassa – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Nassa fueguina
• †Natica
  • †Natica borelloi
  • †Natica limbata
  • †Natica pastorei
  • †Natica sp.
• †Necrobia
  • †Necrobia rufipes
• †Necrolestes
  • †Necrolestes mirabilis – type locality for species
  • †Necrolestes patagonensis
• †Necromys
  • †Necromys bonapartei
  • †Necromys lactens – or unidentified comparable form
• †Necrosuchus – type locality for genus
  • †Necrosuchus ionensis – type locality for species
• †Nectandra
  • †Nectandra patagonica – type locality for species
  • †Nectandra patagonica
  • †Nectandra prolicifa – type locality for species
  • †Nectandra saltensis
• †Neilo
  • †Neilo biradiata
  • †Neilo doellojuradoi – type locality for species
  • †Neilo ornata – or unidentified comparable form
  • †Neilo ornata
  • †Neilo ortmanni
  • †Neilo sp.
• †Nematherium
  • †Nematherium sp.
• †Nemathosphaeropsis
  • †Nemathosphaeropsis spp.
• †Nematosphaeropsis
  • †Nematosphaeropsis rigida
• †Nemolestes – type locality for genus
• †Nemolestes – tentative report
  • †Nemolestes sp.
  • †Nemolestes spalacotherinus – type locality for species
• †Neobrachytherium
  • †Neobrachytherium ameghinoi
  • †Neobrachytherium sp.
• †Neocavia
  • †Neocavia depressidens – type locality for species
  • †Neocavia sp.
• †Neochoerus
  • †Neochoerus sulcidens
  • †Neochoerus tarijensis – or unidentified comparable form
• †Neoepiblema
  • †Neoepiblema ambrosettianus
  • †Neoepiblema horridula
  • †Neoepiblema sp.
• †Neoguraleus
  • †Neoguraleus pilsbry
  • †Neoguraleus pilsbryi
• †Neohapalops
  • †Neohapalops rothi
• †Neoimbricaria
  • †Neoimbricaria patagonica
• †Neoinoceramus
  • †Neoinoceramus ameghinoi
• †Neolepton
  • †Neolepton sp.
• †Neophanomys
  • †Neophanomys biplicatus
  • †Neophanomys sp.
• †Neoprocoela – type locality for genus
  • †Neoprocoela edentatus – type locality for species
• †Neoraistrichia
  • †Neoraistrichia sp.
• †Neoraistrickia
  • †Neoraistrickia sp.
• †Neoreomys
  • †Neoreomys australis
  • †Neoreomys pinturensis – type locality for species
  • †Neoreomys pinturensis
  • †Neoreomys sp.
• †Neosclerocalyptus
  • †Neosclerocalyptus gouldi – type locality for species
  • †Neosclerocalyptus heusseri – or unidentified comparable form
  • †Neosclerocalyptus paskoensis – or unidentified comparable form
  • †Neosclerocalyptus paskoensis
  • †Neosclerocalyptus sp.
• †Neosteiromys
  • †Neosteiromys sp.
  • †Neosteiromys tordillense – type locality for species
• †Neotamandua – tentative report
• †Neotamandua
  • †Neotamandua australis – type locality for species
  • †Neotamandua conspicua – type locality for species
• †Neothoracophorus
  • †Neothoracophorus depressus
  • †Neothoracophorus elevatus
• †Neotomys
  • †Neotomys ebriosus
• †Nephrolithus
  • †Nephrolithus frequens
• †Nesodon
  • †Nesodon imbricatus
  • †Nesodon marmoratus – type locality for species
  • †Nesodon sp.
• †Neuryurus
  • †Neuryurus giganteus – or unidentified comparable form
  • †Neuryurus sp. – tentative report
  • †Neuryurus sp.
  • †Neuryurus trabeculatus – type locality for species
• †Neverita
  • †Neverita chiloensis
  • †Neverita groeberi
  • †Neverita keideli
• †Nicaniella
  • †Nicaniella sp.
• †Niolamia – type locality for genus
• †Niolamia
  • †Niolamia argentina – type locality for species
• †Nodipecten
  • †Nodipecten salis
• †Notaphoebe
  • †Notaphoebe neogaea – type locality for species
  • †Notaphoebe ovatifolia – type locality for species
• †Nothofagidites
  • †Nothofagidites acromegacanthus
  • †Nothofagidites americanus
  • †Nothofagidites aspera
  • †Nothofagidites brachispinulosa – or unidentified comparable form
  • †Nothofagidites brachispinulosa
  • †Nothofagidites brassii
  • †Nothofagidites cincta
  • †Nothofagidites cranwellae
  • †Nothofagidites deminuta
  • †Nothofagidites dorotensis
  • †Nothofagidites flemingii
  • †Nothofagidites fortispinulosus
  • †Nothofagidites fuegiensis
  • †Nothofagidites fusca
  • †Nothofagidites saraensis
  • †Nothofagidites sp.
  • †Nothofagidites sp. 1informal
  • †Nothofagidites sp. 4informal
  • †Nothofagidites sp. 5informal
  • †Nothofagidites sp. 6informal
  • †Nothofagidites spp.
  • †Nothofagidites suggatei
  • †Nothofagidites tehuelchesii
  • †Nothofagidites Tipo Dombeyiinformal
  • †Nothofagidites visserensis – type locality for species
  • †Nothofagidites visserensis
  • †Nothofagidites waipawaensis
• †Nothofagoxylon
  • †Nothofagoxylon menendezii
  • †Nothofagoxylon paraprocera
  • †Nothofagoxylon triseriatum
• †Nothofagus
  • †Nothofagus australis
  • †Nothofagus crenulata
  • †Nothofagus densinervosa
  • †Nothofagus elongata
  • †Nothofagus lanceolata
  • †Nothofagus magelhaenica – or unidentified comparable form
  • †Nothofagus magellanica
  • †Nothofagus obliqua – or unidentified comparable form
  • †Nothofagus serrulata
  • †Nothofagus simplicidens
  • †Nothofagus sp.
  • †Nothofagus variabilis
• †Nothopollenites
  • †Nothopollenites sp.
• †Nothura
  • †Nothura darwini
  • †Nothura sp.
• †Notictis – type locality for genus
• †Notictis
  • †Notictis ortizii – type locality for species
  • †Notictis ortizii
• †Notiocetus – type locality for genus
• †Notiocetus
  • †Notiocetus platensis – type locality for species
  • †Notiocetus romerianus – type locality for species
• †Notocaiman – type locality for genus
  • †Notocaiman stromeri – type locality for species
• †Notocetus – type locality for genus
• †Notocetus
  • †Notocetus vanbenedeni – type locality for species
  • †Notocetus vanbenedeni
• †Notocochlis
  • †Notocochlis isabelleana
• †Notocynus – type locality for genus
  • †Notocynus hermosicus – type locality for species
• †Notodiaphorus – type locality for genus
  • †Notodiaphorus crassus – type locality for species
• †Notoetayoa – type locality for genus
  • †Notoetayoa gargantuai – type locality for species
• †Notogale
  • †Notogale mitis
  • †Notogale tenuis
• †Notohippus
  • †Notohippus sp.
• †Notonychops – type locality for genus
  • †Notonychops powelli – type locality for species
• †Notopachyrucos
  • †Notopachyrucos tambuttoi
• †Notopithecus – tentative report
• †Notopithecus
  • †Notopithecus adapinus – type locality for species
  • †Notopithecus adapinus – tentative report
  • †Notopithecus adapinus – or unidentified comparable form
  • †Notopithecus adapinus
  • †Notopithecus amplidens – type locality for species
  • †Notopithecus amplidens
  • †Notopithecus sp.
  • †Notopithecus summus – type locality for species
  • †Notopithecus trigodontoides – type locality for species
• †Notorhinus – type locality for genus
• †Notorhinus
  • †Notorhinus denticulatus – type locality for species
  • †Notorhinus haroldi – type locality for species
• †Notostylops – type locality for genus
• †Notostylops – tentative report
• †Notostylops – or unidentified comparable form
• †Notostylops
  • †Notostylops appressus – type locality for species
  • †Notostylops appressus
  • †Notostylops aspectans – type locality for species
  • †Notostylops bicinctus – type locality for species
  • †Notostylops brachycephalus – type locality for species
  • †Notostylops murinus – type locality for species
  • †Notostylops murinus – or unidentified comparable form
  • †Notostylops murinus
  • †Notostylops pendens – type locality for species
  • †Notostylops pendens
  • †Notostylops pigafettai – type locality for species
  • †Notostylops sp. – type locality for species
  • †Notostylops sp.
• †Notoziphius – type locality for genus
  • †Notoziphius bruneti – type locality for species
• †Nucula
  • †Nucula crassirugata
  • †Nucula dynastes
  • †Nucula grandis – type locality for species
  • †Nucula grandis
  • †Nucula guillermensis – type locality for species
  • †Nucula lunulae
  • †Nucula patagonica
  • †Nucula pisum
  • †Nucula reticularis
  • †Nucula semiundulata
  • †Nucula sp.
  • †Nucula stationis
  • †Nucula suboblonga – or unidentified comparable form
  • †Nucula suboblonga
• †Nuculana – report made of unidentified related form or using admittedly obsolete nomenclature
• †Nuculana
  • †Nuculana amuriensis – or unidentified comparable form
  • †Nuculana sp.
• †Nunezia – type locality for genus
  • †Nunezia caroloameghinoi – type locality for species
• †Nyctaginites
  • †Nyctaginites ellipticus – type locality for species
• †Nyctelia
  • †Nyctelia picipes
• †Nyssapollenites
  • †Nyssapollenites endobalteus
• †Oamaruia – tentative report
  • †Oamaruia cruzalis
  • †Oamaruia cruzialis
  • †Oamaruia gracilis
  • †Oamaruia observatoria
• †Octodontotherium
  • †Octodontotherium sp.
• †Octomylodon
  • †Octomylodon aversus
• †Ocypode
  • †Ocypode vericoncava
• †Odontaspis
  • †Odontaspis abbatei
  • †Odontaspis macrota
• †Odontocymbiola
  • †Odontocymbiola magellanica
  • †Odontocymbiola pardelensis
  • †Odontocymbiola sp.
• †Odontogryphaea
  • †Odontogryphaea burckhardti
  • †Odontogryphaea sp. – type locality for species
• †Odontomysops – type locality for genus
  • †Odontomysops spiniferus – type locality for species
• †Odontophrynus
  • †Odontophrynus americanus
• †Odostomia
  • †Odostomia euryope
  • †Odostomia suturalis
  • †Odostomia synarthrota
• †Oldfieldthomasia
  • †Oldfieldthomasia anfractuosa – type locality for species
  • †Oldfieldthomasia debilitata – type locality for species
  • †Oldfieldthomasia debilitata – or unidentified comparable form
  • †Oldfieldthomasia debilitata
  • †Oldfieldthomasia parvidens – type locality for species
  • †Oldfieldthomasia sp.
  • †Oldfieldthomasia transversa – type locality for species
• †Oligobiotherium – type locality for genus
• †Oligobiotherium
  • †Oligobiotherium divisum – type locality for species
  • †Oligobiotherium divisum
• †Oligoryzomys
  • †Oligoryzomys flavescens – or unidentified comparable form
  • †Oligoryzomys longicaudatus – or unidentified comparable form
• †Olivancillaria
  • †Olivancillaria fracassoensis
  • †Olivancillaria prisca
  • †Olivancillaria uretai – or unidentified related form
• †Olivella
  • †Olivella fracassoensis
  • †Olivella plata – or unidentified related form
  • †Olivella puelcha
• †Olsacheria
  • †Olsacheria argentina
• †Omalogyra
  • †Omalogyra antarctica
• †Omphalea
  • †Omphalea patagonica – type locality for species
• †Onoba
  • †Onoba sp.
• †Opalia
  • †Opalia rugulosa
• †Opaliopsis
  • †Opaliopsis linaresi
• †Operculodinium
  • †Operculodinium centrocarpum
• †Operculodium
  • †Operculodium centrocarpum
• †Ophiocrossota
  • †Ophiocrossota kollenbergorum
• †Ophioglossisporites
  • †Ophioglossisporites cullensis
• †Opisthodactylus
  • †Opisthodactylus kirchneri – type locality for species
  • †Opisthodactylus patagonicus
• †Orapollis
  • †Orapollis sp.
• †Oreodaphne
  • †Oreodaphne preacutifolia – type locality for species
  • †Oreodaphne sp.
• †Oreopanax
  • †Oreopanax guinazui – type locality for species
• †Ormenis
  • †Ormenis devincta – type locality for species
• †Orthoarthrus – type locality for genus
  • †Orthoarthrus mixtus – type locality for species
• †Orthogeniops – type locality for genus
  • †Orthogeniops ameghinoi – type locality for species
• †Ortholophodon – type locality for genus
  • †Ortholophodon prolongus – type locality for species
• †Orthomyctera
  • †Orthomyctera andina
  • †Orthomyctera lacunosa – or unidentified comparable form
  • †Orthomyctera sp.
• †Ortmannia
  • †Ortmannia ortmanni
• †Ortotherium
  • †Ortotherium brevirostrum
  • †Ortotherium laticurvatum
  • †Ortotherium robustum
• †Osachila
  • †Osachila valdesensis
• †Osmundacidites
  • †Osmundacidites ciliatus
• †Osteophorus
  • †Osteophorus typus
• †Ostrea – or unidentified comparable form
• †Ostrea
  • †Ostrea agglomerans
  • †Ostrea alvarezi
  • †Ostrea axillata
  • †Ostrea damboreneae
  • †Ostrea elongata
  • †Ostrea entreriana
  • †Ostrea foliiformis
  • †Ostrea guaranitica – or unidentified comparable form
  • †Ostrea ingens
  • †Ostrea orbignyi
  • †Ostrea philippii
  • †Ostrea rionegrensis
  • †Ostrea semitabulata
  • †Ostrea sp.
  • †Ostrea strangulata
  • †Ostrea tehuelcha
  • †Ostrea vulselloides
  • †Ostrea wilckensi
  • †Ostrea wilckensis
• †Otaria
  • †Otaria fischeri – type locality for species
  • †Otaria sp.
• †Othnielmarshia – type locality for genus
• †Othnielmarshia – tentative report
• †Othnielmarshia
  • †Othnielmarshia curvicrista – type locality for species
  • †Othnielmarshia lacunifera – type locality for species
  • †Othnielmarshia lacunifera
  • †Othnielmarshia reflexa – type locality for species
  • †Othnielmarshia sp.
• †Otiorhynchites
  • †Otiorhynchites aterrimus
  • †Otiorhynchites crassus – type locality for species
• †Otodus
  • †Otodus megalodon
• †Otrhonia – type locality for genus
• †Otrhonia
  • †Otrhonia muehlbergi – type locality for species
  • †Otrhonia muehlbergi
• †Ouratea
  • †Ouratea firmifolia
• †Ovoidites
  • †Ovoidites spp.
• †Oxybunotherium – type locality for genus
  • †Oxybunotherium praecursor – type locality for species
• †Oxymycterus
  • †Oxymycterus sp.
  • †Oxymycterus wayku
• †Oxyodontherium – tentative report
• †Oxyodontherium
  • †Oxyodontherium piramydatus
  • †Oxyodontherium sp.
  • †Oxyodontherium zeballozi
• †Ozotoceros
  • †Ozotoceros bezoarticus
• †Pachimagas
  • †Pachimagas venter
• †Pachybiotherium – type locality for genus
• †Pachybiotherium
  • †Pachybiotherium acclinum – type locality for species
  • †Pachybiotherium acclinum – or unidentified comparable form
  • †Pachybiotherium illuminatum – type locality for species
• †Pachycymbiola
  • †Pachycymbiola ameghinoi
  • †Pachycymbiola arriolensis
  • †Pachycymbiola brasiliana – or unidentified related form
  • †Pachycymbiola camachoi
• †Pachymagas
  • †Pachymagas piramidesia
  • †Pachymagas sp.
• †Pachymagus
  • †Pachymagus pyramidesia
  • †Pachymagus venter – or unidentified comparable form
• †Pachynodon
  • †Pachynodon modicus
• †Pachypithecus – type locality for genus
  • †Pachypithecus macrognathus – type locality for species
• †Pachyrukhos
  • †Pachyrukhos moyani
  • †Pachyrukhos sp.
• †Paedotherium
  • †Paedotherium bonaerense
  • †Paedotherium minor – or unidentified comparable form
  • †Paedotherium minor
  • †Paedotherium sp.
  • †Paedotherium typicum
• †Paginula – type locality for genus
• †Paginula
  • †Paginula parca – type locality for species
  • †Paginula parca
• †Pagodula
  • †Pagodula carcellesi
  • †Pagodula carduelis – or unidentified related form
• †Palacolama
  • †Palacolama weddelli
• †Palaeobalaena – type locality for genus
• †Palaeobalaena
  • †Palaeobalaena bergi – type locality for species
  • †Palaeobalaena bergi
  • †Palaeobalaena dubia
• †Palaeocavia
  • †Palaeocavia sp.
• †Palaeociconia
  • †Palaeociconia australis
• †Palaeocoprosmadites
  • †Palaeocoprosmadites sp.
  • †Palaeocoprosmadites zelandiae
• †Palaeoctodon
  • †Palaeoctodon simplicidens – or unidentified related form
• †Palaeocystodinium
  • †Palaeocystodinium sp.
• †Palaeohoplophorus
  • †Palaeohoplophorus antiquus
• †Palaeolama
  • †Palaeolama sp.
• †Palaeomacromia – type locality for genus
  • †Palaeomacromia multicellulata – type locality for species
• †Palaeomelon
  • †Palaeomelon triplicata
• †Palaeomyrmidon – type locality for genus
  • †Palaeomyrmidon incomptus – type locality for species
• †Palaeopeltis
  • †Palaeopeltis inornatus
  • †Palaeopeltis tesseratus – type locality for species
• †Palaeoperidinium
  • †Palaeoperidinium pyrophorum
• †Palaeophya – type locality for genus
  • †Palaeophya argentina – type locality for species
• †Palaeospheniscus – type locality for genus
• †Palaeospheniscus
  • †Palaeospheniscus affinis
  • †Palaeospheniscus bergi – type locality for species
  • †Palaeospheniscus bergi
  • †Palaeospheniscus bilocular – type locality for species
  • †Palaeospheniscus gracilis
  • †Palaeospheniscus intermedius
  • †Palaeospheniscus interruptus
  • †Palaeospheniscus patagonicus – type locality for species
  • †Palaeospheniscus patagonicus
  • †Palaeospheniscus planus
  • †Palaeospheniscus rothi
  • †Palaeospheniscus wimani
• †Palaeothentes
  • †Palaeothentes aratae
  • †Palaeothentes chubutensis
  • †Palaeothentes intermedius
  • †Palaeothentes lemoinei
  • †Palaeothentes lucina – type locality for species
  • †Palaeothentes lucina
  • †Palaeothentes minutus – tentative report
  • †Palaeothentes minutus
  • †Palaeothentes pascuali
  • †Palaeothentes praecursor – type locality for species
  • †Palaeothentes sp.
• †Palaeotoxodon – tentative report
• †Palaeotoxodon
  • †Palaeotoxodon paranensis
  • †Palaeotoxodon protoburmeisteri
  • †Palaeotoxodon virgatus
• †Palangania – type locality for genus
• †Palangania
  • †Palangania brandmayri – type locality for species
  • †Palangania brandmayri – or unidentified comparable form
  • †Palangania sp.
• †Paleocavia
  • †Paleocavia sp.
• †Paleospheniscus
  • †Paleospheniscus gracillis
• †Paleuphractus
  • †Paleuphractus sp.
• †Palmoxylon
  • †Palmoxylon patagonicum – type locality for species
  • †Palmoxylon patagonicum
  • †Palmoxylon sp. 1informal
  • †Palmoxylon sp. 2informal
• †Pampahippus – type locality for genus
• †Pampahippus – or unidentified comparable form
• †Pampahippus
  • †Pampahippus arenalesi – type locality for species
  • †Pampahippus arenalesi
  • †Pampahippus powelli – type locality for species
  • †Pampahippus secundus – type locality for species
  • †Pampahippus sp.
• †Pampamys
  • †Pampamys emmonsae
• †Pampatemnus – type locality for genus
• †Pampatemnus
  • †Pampatemnus deuteros – type locality for species
  • †Pampatemnus infernalis – type locality for species
• †Pampatherium
  • †Pampatherium sp.
  • †Pampatherium typus
• †Pandaniidites
  • †Pandaniidites sp.
• †Panochthus
  • †Panochthus sp. – tentative report
  • †Panochthus sp.
  • †Panochthus tuberculatus
• †Panopea
  • †Panopea clausa – or unidentified comparable form
  • †Panopea hauthali – or unidentified comparable form
  • †Panopea ibari
  • †Panopea inferior – or unidentified comparable form
  • †Panopea malvernensis – or unidentified comparable form
  • †Panopea nucleus – or unidentified related form
  • †Panopea nucleus
  • †Panopea pastorei
  • †Panopea patagonica
  • †Panopea prenucleus
  • †Panopea quemadensis – or unidentified comparable form
  • †Panopea quemadensis
  • †Panopea regularis
  • †Panopea sierrana
  • †Panopea simplex – or unidentified related form
  • †Panopea sp.
  • †Panopea sp. Ainformal
  • †Panopea sp. Dinformal
  • †Panopea thomasi
  • †Panopea torresi – or unidentified comparable form
  • †Panopea undatoides
  • †Panopea zinsmeisteri – type locality for species
• †Panopeus
  • †Panopeus piramidensis
• †Panthera
  • †Panthera onca
  • †Panthera platensis
• †Pantostylops
  • †Pantostylops typus – type locality for species
• †Papuacedrus
  • †Papuacedrus prechilensis
• †Parabderites
  • †Parabderites bicrispatus
  • †Parabderites minusculus
  • †Parabderites sp.
• †Paracacioxylon
  • †Paracacioxylon frenguellii – type locality for species
• †Paradelphomys – type locality for genus
  • †Paradelphomys fissus – type locality for species
• †Paradidelphys
  • †Paradidelphys pattersonii
• †Paradoxomys
  • †Paradoxomys sp.
• †Paraeuphractus
  • †Paraeuphractus prominens
• †Paraeutatus
  • †Paraeutatus distans
• †Paraeuthria
  • †Paraeuthria plumbea
• †Paraglyptodon – or unidentified comparable form
• †Paraglyptodon
  • †Paraglyptodon chapalmalensis
  • †Paraglyptodon paranensis
  • †Paraglyptodon uquiensis
• †Parahoplophorus
  • †Parahoplophorus paranensis
• †Parahyaenodon
  • †Parahyaenodon argentinus
• †Parahydraspis – type locality for genus
  • †Parahydraspis paranaensis – type locality for species
• †Paramyocastor
  • †Paramyocastor diligens – or unidentified comparable form
  • †Paramyocastor diligens
• †Paranabradys – type locality for genus
  • †Paranabradys vucetichae – type locality for species
• †Paranamys
  • †Paranamys sp.
• †Paranauchenia
  • †Paranauchenia denticulata
• †Paranymphaea
  • †Paranymphaea aristolochiaformis – type locality for species
  • †Paranymphaea aristolochiaformis
• †Paraptenodytes – type locality for genus
• †Paraptenodytes
  • †Paraptenodytes antarcticus – type locality for species
  • †Paraptenodytes antarcticus
  • †Paraptenodytes brodkorbi – type locality for species
  • †Paraptenodytes robustus
• †Parastegosimpsonia
  • †Parastegosimpsonia peruana – or unidentified comparable form
• †Parasteiromys
  • †Parasteiromys friantae – type locality for species
  • †Parasteiromys uniformis – type locality for species
• †Parastrapotherium – type locality for genus
• †Parastrapotherium
  • †Parastrapotherium crassum – type locality for species
  • †Parastrapotherium holmbergi – type locality for species
  • †Parastrapotherium holmbergi
  • †Parastrapotherium martiale
  • †Parastrapotherium sp.
  • †Parastrapotherium symmetrum – type locality for species
  • †Parastrapotherium voghti – type locality for species
• †Pareuthria
  • †Pareuthria plumbea
  • †Pareuthria sp.
• †Parinomya
  • †Parinomya juliense
  • †Parinomya juliensis
  • †Parinomya patagonensis
• †Parodimys – tentative report
• †Parodimys
  • †Parodimys sp.
• †Parsonsidites
  • †Parsonsidites multiporus
• †Parutaetus
  • †Parutaetus chicoensis – type locality for species
  • †Parutaetus chicoensis
  • †Parutaetus chilensis – tentative report
  • †Parutaetus chilensis – or unidentified comparable form
  • †Parutaetus chilensis
  • †Parutaetus clusus – type locality for species
  • †Parutaetus punaensis – type locality for species
  • †Parutaetus punaensis
  • †Parutaetus signatus – type locality for species
• †Pascualia
  • †Pascualia laeviplicata – or unidentified related form
• †Pascualodus – type locality for genus
  • †Pascualodus patagoniensis – type locality for species
• †Patagonhippus – type locality for genus
• †Patagonhippus
  • †Patagonhippus canterensis – type locality for species
  • †Patagonhippus dukei – type locality for species
• †Patagonia – type locality for genus
  • †Patagonia peregrina – type locality for species
• †Patagonicardium
  • †Patagonicardium philippi
• †Patagorhynchia
  • †Patagorhynchia patagonica
• †Patagornis – type locality for genus
• †Patagornis
  • †Patagornis marshi – type locality for species
  • †Patagornis marshi
• †Patagosmilus – type locality for genus
  • †Patagosmilus goini – type locality for species
• †Patagumbonium
  • †Patagumbonium australis
• †Patene – type locality for genus
• †Patene
  • †Patene coluapiensis – type locality for species
  • †Patene simpsoni
  • †Patene sp.
• †Patinopecten
  • †Patinopecten sp.
• †Pauladelphys
  • †Pauladelphys sp.
• †Paullinia
  • †Paullinia prerufescens – type locality for species
  • †Paullinia rubiginosifolia – type locality for species
• †Paulogervaisia
  • †Paulogervaisia celata – type locality for species
  • †Paulogervaisia inusta – type locality for species
  • †Paulogervaisia inusta
  • †Paulogervaisia mamma – type locality for species
  • †Paulogervaisia porca – type locality for species
• †Pecopteris
  • †Pecopteris buhsei
• †Pecten
  • †Pecten proximus
• †Pectinodonta
  • †Pectinodonta sp.
• †Pediastrum
  • †Pediastrum boryanum
  • †Pediastrum musterii
  • †Pediastrum sp.
  • †Pediastrum spp.
  • †Pediastrum tetras – or unidentified comparable form
• †Pediolagus
  • †Pediolagus salinicola
• †Pehuenia
  • †Pehuenia magna – type locality for species
• †Pelecyodon
  • †Pelecyodon cristatus
• †Peligrochelys – type locality for genus
  • †Peligrochelys walshae – type locality for species
• †Peligrotherium – type locality for genus
  • †Peligrotherium tropicalis – type locality for species
• †Peltephilus
  • †Peltephilus ferox
  • †Peltephilus giganteus
  • †Peltephilus nanus
  • †Peltephilus pumilus
  • †Peltephilus sp.
  • †Peltephilus strepens
  • †Peltephilus undulatus
• †Peninsulapollis
  • †Peninsulapollis askiniae
  • †Peninsulapollis gillii
  • †Peninsulapollis sp. 2informal
  • †Peninsulapollis truswelliae – or unidentified comparable form
• †Penion
  • †Penion patagonensis
  • †Penion subrecta
• †Pentastylomys
  • †Pentastylomys sp.
• †Peonza
  • †Peonza torquata
• †Perathereutes – type locality for genus
• †Perathereutes – tentative report
• †Perathereutes
  • †Perathereutes pungens – type locality for species
  • †Perathereutes pungens
• †Peratotoma – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Peratotoma iheringi
• †Percichthys
  • †Percichthys hondoensis – type locality for species
  • †Percichthys sp.
• †Perfotricolpites
  • †Perfotricolpites sp.
• †Periakros – type locality for genus
  • †Periakros ambiguus – type locality for species
• †Peridinium
  • †Peridinium limbatum – or unidentified related form
  • †Peridinium sp.
• †Perimys – tentative report
• †Perimys
  • †Perimys dissimilis
  • †Perimys erutus
  • †Perimys incavatus
  • †Perimys intermedius – type locality for species
  • †Perimys intermedius
  • †Perimys sp.
  • †Perimys transversus
• †Peripantostylops – tentative report
• †Peripantostylops
  • †Peripantostylops minutus – type locality for species
  • †Peripantostylops minutus
  • †Peripantostylops orehor – type locality for species
  • †Peripantostylops sp.
• †Periphragnis – type locality for genus
• †Periphragnis – tentative report
• †Periphragnis
  • †Periphragnis cristatus – type locality for species
  • †Periphragnis exauctus – type locality for species
  • †Periphragnis exauctus
  • †Periphragnis harmeri – type locality for species
  • †Periphragnis harmeri
  • †Periphragnis palmeri – type locality for species
  • †Periphragnis sp.
• †Periploma
  • †Periploma primaverensis – type locality for species
• †Periporopollenites
  • †Periporopollenites demarcatus
  • †Periporopollenites pallidus
  • †Periporopollenites vesicus
• †Perissodonta
  • †Perissodonta ameghinoi
  • †Perissodonta minor – or unidentified comparable form
• †Perissoptera
  • †Perissoptera monodactyla – or unidentified comparable form
  • †Perissoptera schlagintweiti
• †Peromonolites
  • †Peromonolites sp.
  • †Peromonolites sp. 1informal
  • †Peromonolites sp. 2informal
  • †Peromonolites vellosus
• †Perotrilites
  • †Perotrilites sp.
• †Persea
  • †Persea microphylla – or unidentified comparable form
• †Pesavis
  • †Pesavis spp.
• †Petaloconchus
  • †Petaloconchus sp.
• †Peumus
  • †Peumus clarki – type locality for species
  • †Peumus clarki
• †Phalacrocorax
  • †Phalacrocorax brasilianus
  • †Phalacrocorax spp.
• †Phanomys – type locality for genus
• †Phanomys
  • †Phanomys mixtmus
  • †Phanomys mixtus – type locality for species
  • †Phanomys mixtus
  • †Phanomys vetulus – type locality for species
• †Pharsophorus
  • †Pharsophorus lacerans – or unidentified comparable form
  • †Pharsophorus lacerans
  • †Pharsophorus sp.
• †Phasianella
  • †Phasianella fossilis
• †Philander
  • †Philander entrerianus
• †Philobrya
  • †Philobrya sublaevis – tentative report
• †Phlyctaenopyga
  • †Phlyctaenopyga ameghinoi
• †Phoberodon – type locality for genus
  • †Phoberodon arctirostris – type locality for species
• †Phoberomys
  • †Phoberomys burmeisteri
  • †Phoberomys insolita – type locality for species
  • †Phoberomys lozanoi – type locality for species
  • †Phoberomys minima – type locality for species
  • †Phoberomys praecursor – type locality for species
  • †Phoberomys sp.
• †Phocoena
  • †Phocoena dioptrica
• †Phoebe
  • †Phoebe elliptica
  • †Phoebe lanceolata
• †Pholadidea
  • †Pholadidea frenguellii – type locality for species
  • †Pholadidea patagonica
  • †Pholadidea sp.
• †Phonocdromus – type locality for genus
• †Phonocdromus
  • †Phonocdromus gracilis – type locality for species
  • †Phonocdromus gracilis
• †Phoradiadius – type locality for genus
  • †Phoradiadius divortiensis – type locality for species
• †Phorusrhacos – type locality for genus
• †Phorusrhacos
  • †Phorusrhacos longissimus – type locality for species
  • †Phorusrhacos longissimus
• †Phrynops
  • †Phrynops geoffroanus – or unidentified comparable form
• †Phtoramys
  • †Phtoramys hidalguense – or unidentified comparable form
  • †Phtoramys hidalguense
  • †Phtoramys homogenidens
• †Phugatherium – type locality for genus
• †Phugatherium
  • †Phugatherium cataclisticum
  • †Phugatherium novum
  • †Phugatherium pisanoi – type locality for species
  • †Phugatherium sp.
• †Phyllites
  • †Phyllites clarki – type locality for species
  • †Phyllites mollinediaformis
  • †Phyllites nirihuaoensis – type locality for species
  • †Phyllites sloaneaformis – type locality for species
  • †Phyllites sp. – type locality for species
  • †Phyllites sp.
  • †Phyllites sp. 2informal
  • †Phyllites sp. 3informal
• †Phyllocladidites
  • †Phyllocladidites elongatus
  • †Phyllocladidites mawsonii
  • †Phyllocladidites sp.
  • †Phyllocladidites verruscosus – or unidentified comparable form
• †Phyllocladoxylon
  • †Phyllocladoxylon sp.
• †Phyllotis
  • †Phyllotis anitae
  • †Phyllotis sp.
• †Physornis
  • †Physornis sp.
• †Picturotherium – type locality for genus
• †Picturotherium
  • †Picturotherium migueli – type locality for species
  • †Picturotherium migueli
• †Picunia – type locality for genus
  • †Picunia nitida – type locality for species
• †Pilchenia
  • †Pilchenia antiqua – type locality for species
  • †Pilchenia intermedia – type locality for species
• †Pimelodella
  • †Pimelodella leticeps – or unidentified related form
• †Pinna
  • †Pinna anderssoni – or unidentified related form
  • †Pinna freneixae – or unidentified comparable form
  • †Pinna robusta
  • †Pinna sp.
• †Piptadenioxylon
  • †Piptadenioxylon paraexcelsa – type locality for species
• †Pisanodon
  • †Pisanodon nazari
• †Pitar
  • †Pitar julianum
  • †Pitar laziarina
  • †Pitar rostratus
• †Pithanotomys – or unidentified related form
• †Pithanotomys
  • †Pithanotomys columnaris
  • †Pithanotomys macer
  • †Pithanotomys sp.
• †Pitheculites
  • †Pitheculites sp.
• †Pityrogramma
  • †Pityrogramma sp.
• †Plagiocoelus – type locality for genus
  • †Plagiocoelus obliquus – type locality for species
• †Plaina
  • †Plaina intermedia – or unidentified comparable form
  • †Plaina sp.
• †Planops
  • †Planops magnus – type locality for species
• †Plantago
  • †Plantago sp.
• †Platygonus
  • †Platygonus chapadmalensis
  • †Platygonus chapalmalensis
  • †Platygonus marplatensis – type locality for species
  • †Platygonus marplatensis
  • †Platygonus uquiensis
• †Platypittamys – type locality for genus
  • †Platypittamys brachyodon – type locality for species
• †Platypygus
  • †Platypygus posthumus
• †Plaxhaplus
  • †Plaxhaplus canaliculatus
• †Plesiocetopsis
  • †Plesiocetopsis notopelagicus – type locality for species
• †Plesiocetus
  • †Plesiocetus dyticus – type locality for species
• †Plesiofelis – type locality for genus
• †Plesiofelis
  • †Plesiofelis schlosseri – type locality for species
• †Plesiomegatherium – or unidentified comparable form
• †Plesiomegatherium
  • †Plesiomegatherium sp.
• †Pleuromeris
  • †Pleuromeris camaronesia
  • †Pleuromeris cannada
  • †Pleuromeris cruzensis
  • †Pleuromeris elegantoides
  • †Pleuromeris sp.
  • †Pleuromeris sulcolunularis
• †Pleurostylodon – type locality for genus
• †Pleurostylodon – tentative report
• †Pleurostylodon – or unidentified comparable form
• †Pleurostylodon
  • †Pleurostylodon bifidus – type locality for species
  • †Pleurostylodon complanatus – type locality for species
  • †Pleurostylodon crassiramis – type locality for species
  • †Pleurostylodon modicus – type locality for species
  • †Pleurostylodon modicus
  • †Pleurostylodon notabilis – type locality for species
  • †Pleurostylodon recticrista – type locality for species
  • †Pleurostylodon similis – type locality for species
  • †Pleurostylodon similis – or unidentified comparable form
  • †Pleurostylodon similis
  • †Pleurostylodon sp.
• †Pleurostylops – type locality for genus
  • †Pleurostylops glebosus – type locality for species
• †Plicacesta
  • †Plicacesta sp.
• †Plicatopollis
  • †Plicatopollis cretacea
  • †Plicatopollis wodehousi
• †Plicatula
  • †Plicatula georgiana
• †Plicifera
  • †Plicifera delicata
• †Plicirhynchia
  • †Plicirhynchia plicigera
• †Plicirhynichia
  • †Plicirhynichia plicigera
• †Pliodolichotis
  • †Pliodolichotis sp.
• †Pliolestes
  • †Pliolestes tripotamicus
  • †Pliolestes venetus – type locality for species
  • †Pliolestes venetus
• †Pliomegatherium
  • †Pliomegatherium lelongi
• †Pliomorphus
  • †Pliomorphus mutilatus
  • †Pliomorphus robustus
• †Plohophorus
  • †Plohophorus araucanus
  • †Plohophorus cuneiformis
  • †Plohophorus figuratus – or unidentified related form
  • †Plohophorus figuratus
  • †Plohophorus paranensis
• †Plumeria
  • †Plumeria articulatafolia – type locality for species
• †Pluricellaesporites
  • †Pluricellaesporites sp. Ainformal
  • †Pluricellaesporites spp.
• †Poacites
  • †Poacites chloriformis – type locality for species
  • †Poacites sp.
• †Podabrus – tentative report
  • †Podabrus santaritensis – type locality for species
• †Podocarpidites
  • †Podocarpidites elegans – or unidentified comparable form
  • †Podocarpidites elegans
  • †Podocarpidites ellipticus – or unidentified comparable form
  • †Podocarpidites ellipticus
  • †Podocarpidites exiguus – or unidentified comparable form
  • †Podocarpidites exiguus
  • †Podocarpidites magnus
  • †Podocarpidites marwickii – or unidentified comparable form
  • †Podocarpidites marwickii
  • †Podocarpidites marwikii
  • †Podocarpidites microreticuloidata
  • †Podocarpidites microreticuloidatus
  • †Podocarpidites psilasaccus – type locality for species
  • †Podocarpidites rugulosus
  • †Podocarpidites sp.
  • †Podocarpidites sp. 1informal
  • †Podocarpidites sp. 2informal
  • †Podocarpidites spp.
  • †Podocarpidites torquatus
  • †Podocarpidites verrucosus
• †Podocarpoxylon
  • †Podocarpoxylon mazzonii
• †Podocarpus
  • †Podocarpus andiniformis – type locality for species
  • †Podocarpus andiniformis
• †Pododesmus
  • †Pododesmus paucisquamatus
• †Polinices – report made of unidentified related form or using admittedly obsolete nomenclature
• †Polinices
  • †Polinices australis
  • †Polinices cerreria
  • †Polinices consimilis
  • †Polinices famula
  • †Polinices finlayi – or unidentified comparable form
  • †Polinices jorgensis
  • †Polinices ortmanni
  • †Polinices sanatacrucensis
  • †Polinices santacrucensis
  • †Polinices secunda
  • †Polinices sp. – type locality for species
  • †Polinices sp.
  • †Polinices subtenuis
• †Polioexolobus – type locality for genus
  • †Polioexolobus prenuntius – type locality for species
• †Poluspissusites
  • †Poluspissusites sp.
  • †Poluspissusites sp.1informal
• †Polyacrodon – type locality for genus
• †Polyacrodon
  • †Polyacrodon lanciformis – type locality for species
  • †Polyacrodon lanciformis
  • †Polyacrodon ligatus – type locality for species
  • †Polyacrodon ligatus
• †Polyadasporonites
  • †Polyadasporonites spp.
• †Polyadopollenites
  • †Polyadopollenites sp.
• †Polycolporopollenites
  • †Polycolporopollenites esobalteus
  • †Polycolporopollenites sp.
• †Polydolops – type locality for genus
• †Polydolops – tentative report
• †Polydolops
  • †Polydolops borcurhor
  • †Polydolops clavulus – type locality for species
  • †Polydolops crassus – type locality for species
  • †Polydolops kamektsen – type locality for species
  • †Polydolops rothi – type locality for species
  • †Polydolops rothi
  • †Polydolops serra – type locality for species
  • †Polydolops serra
  • †Polydolops sp.
  • †Polydolops sp. nov. 1informal
  • †Polydolops sp. nov. 2informal
  • †Polydolops sp. nov. 3informal
  • †Polydolops thomasi – type locality for species
  • †Polydolops thomasi
  • †Polydolops unicus – type locality for species
  • †Polydolops unicus
  • †Polydolops winecage – type locality for species
• †Polylepis
  • †Polylepis prenuntia – type locality for species
• †Polymesoda
  • †Polymesoda solobris
• †Polymorphis – type locality for genus
• †Polymorphis
  • †Polymorphis alius – type locality for species
  • †Polymorphis lechei – type locality for species
  • †Polymorphis lechei
  • †Polymorphis planus – type locality for species
• †Polyorificites
  • †Polyorificites sp.
• †Polypodiaceoisporites
  • †Polypodiaceoisporites retirugatus – or unidentified comparable form
  • †Polypodiaceoisporites simplex
  • †Polypodiaceoisporites sp.
  • †Polypodiaceoisporites tumulatus
• †Polypodiidites
  • †Polypodiidites sp.
  • †Polypodiidites speciosus
• †Polypodiisporites
  • †Polypodiisporites inangahuensis
  • †Polypodiisporites irregularis
  • †Polypodiisporites minimus – or unidentified comparable form
  • †Polypodiisporites radiatus
  • †Polypodiisporites speciosus
• †Polyporina
  • †Polyporina romeroi – type locality for species
  • †Polyporina romeroi
• †Polystira
  • †Polystira cingula
  • †Polystira sp.
• †Pontistes
  • †Pontistes rectifrons – type locality for species
  • †Pontistes rectifrons
• †Pontivaga – type locality for genus
  • †Pontivaga fischeri – type locality for species
• †Porphyrula
  • †Porphyrula sp.
• †Potamarchus
  • †Potamarchus sp.
• †Pouterlabatia – type locality for genus
  • †Pouterlabatia clarki – type locality for species
  • †Pouterlabatia lanceolata – type locality for species
• †Praedens – type locality for genus
  • †Praedens aberrans – type locality for species
• †Preaulophyseter – type locality for genus
  • †Preaulophyseter gualichensis – type locality for species
• †Prepidolops – type locality for genus
• †Prepidolops
  • †Prepidolops didelphoides – type locality for species
  • †Prepidolops molinai – type locality for species
• †Prepotherium
  • †Prepotherium filholi – type locality for species
  • †Prepotherium potens
  • †Prepotherium sp.
• †Prinsius
  • †Prinsius dimorphosus
• †Prionodelphis – type locality for genus
  • †Prionodelphis rovereti – type locality for species
• †Priscaphander – tentative report
• †Priscaphander – or unidentified comparable form
• †Priscaphander
  • †Priscaphander bracaccini
  • †Priscaphander patagonica
  • †Priscaphander sanjosensis
  • †Priscaphander sp. Ainformal
• †Proacrodon – type locality for genus
  • †Proacrodon transformatus – type locality for species
• †Proadiantus – type locality for genus
• †Proadiantus
  • †Proadiantus excavatus – type locality for species
  • †Proadiantus excavatus
  • †Proadiantus gibbus – type locality for species
• †Proadinotherium
  • †Proadinotherium leptognathus
  • †Proadinotherium muensteri – or unidentified comparable form
  • †Proadinotherium sp.
• †Proargyrohyrax
  • †Proargyrohyrax curanderensis
  • †Proargyrohyrax sp.
• †Proargyrolagus
  • †Proargyrolagus argentinus – type locality for species
• †Proborhyaena
  • †Proborhyaena gigantea
  • †Proborhyaena gigantia
  • †Proborhyaena sp.
• †Procaroloameghinia
  • †Procaroloameghinia pricei
• †Procladosictis – type locality for genus
• †Procladosictis
  • †Procladosictis anomala – type locality for species
  • †Procladosictis erecta – type locality for species
• †Procolpodon – type locality for genus
  • †Procolpodon foratus – type locality for species
• †Prodaedicurus
  • †Prodaedicurus chapalmalensis – or unidentified comparable form
• †Prodolichotis
  • †Prodolichotis prisca
  • †Prodolichotis sp.
• †Proectocion
  • †Proectocion argentinus – type locality for species
  • †Proectocion precisus – type locality for species
• †Proeuphractus
  • †Proeuphractus limpidus
  • †Proeuphractus setiger
  • †Proeuphractus sp.
• †Proeutatus
  • †Proeutatus oenophorum
  • †Proeutatus robustus – type locality for species
  • †Proeutatus robustus
  • †Proeutatus sp.
  • †Proeutatus sp. 1informal
  • †Proeutatus sp. 2informal
• †Progaleopithecus – type locality for genus
• †Progaleopithecus
  • †Progaleopithecus fissurellatus – type locality for species
  • †Progaleopithecus sp.
  • †Progaleopithecus tournoueri – type locality for species
  • †Progaleopithecus tournoueri
• †Progarzonia – type locality for genus
  • †Progarzonia notostylopense – type locality for species
• †Prohegetotherium – type locality for genus
• †Prohegetotherium
  • †Prohegetotherium malalhuense – type locality for species
  • †Prohegetotherium schiaffinoi – type locality for species
  • †Prohegetotherium schiaffinoi
  • †Prohegetotherium sculptum – type locality for species
  • †Prohegetotherium sculptum – or unidentified comparable form
  • †Prohegetotherium sculptum
  • †Prohegetotherium sp.
• †Proheptaconus – type locality for genus
• †Proheptaconus
  • †Proheptaconus patagonicus – type locality for species
• †Prolagostomus
  • †Prolagostomus sp.
• †Prolestodon
  • †Prolestodon antiquus
  • †Prolestodon paranensis
• †Prolicaphrium
  • †Prolicaphrium spectabile
• †Promacrauchenia
  • †Promacrauchenia antiqua
  • †Promacrauchenia kraglievichi
  • †Promacrauchenia sp.
• †Promegalestes – type locality for genus
  • †Promegalestes singularis – type locality for species
• †Promegatherium
  • †Promegatherium parvulum
  • †Promegatherium smaltatus
• †Promoeritherium – type locality for genus
  • †Promoeritherium australe – type locality for species
• †Promylodon
  • †Promylodon paranensis
• †Promysops – tentative report
  • †Promysops primarius – type locality for species
• †Pronothrotherium
  • †Pronothrotherium mirabilis
• †Propachyrucos
  • †Propachyrucos ameghinorum – type locality for species
  • †Propachyrucos ameghinorum
  • †Propachyrucos smithwoodwardi – or unidentified comparable form
  • †Propachyrucos sp.
• †Propalaehoplophorus
  • †Propalaehoplophorus australis
  • †Propalaehoplophorus incisivus
  • †Propalaehoplophorus minus
  • †Propalaehoplophorus sp.
• †Propediolagus
  • †Propediolagus sp.
• †Properiptychus
  • †Properiptychus argentinus – type locality for species
  • †Properiptychus argentinus
• †Propithecia – type locality for genus
  • †Propithecia neuquenensis – type locality for species
• †Proplanodus – type locality for genus
  • †Proplanodus adnepos – type locality for species
• †Proplatyarthrus – type locality for genus
  • †Proplatyarthrus longipes – type locality for species
• †Propraopus
  • †Propraopus sp.
  • †Propraopus sulcatus
• †Propylipollis
  • †Propylipollis concretus
  • †Propylipollis lateflexus
  • †Propylipollis reticuloscabratus
  • †Propylipollis tenuiexinus – or unidentified comparable form
• †Propyrotherium – type locality for genus
• †Propyrotherium
  • †Propyrotherium saxeum – type locality for species
  • †Propyrotherium saxeum – or unidentified comparable form
  • †Propyrotherium saxeum
  • †Propyrotherium sp.
• †Proscaphella
  • †Proscaphella cossmanni
  • †Proscaphella santacrucensis
• †Proscelidodon – or unidentified comparable form
• †Proscelidodon
  • †Proscelidodon patrius – or unidentified comparable form
  • †Proscelidodon patrius
  • †Proscelidodon sp.
• †Prosopis
  • †Prosopis nigra
  • †Prosopis sp.
• †Prosotherium – or unidentified comparable form
• †Prosotherium
  • †Prosotherium garzoni
  • †Prosotherium sp.
  • †Prosotherium triangulidens
• †Prospaniomys – tentative report
• †Prospaniomys
  • †Prospaniomys priscus – or unidentified comparable form
  • †Prospaniomys priscus
  • †Prospaniomys sp. 1informal
  • †Prospaniomys sp. 2informal
• †Prosqualodon – type locality for genus
• †Prosqualodon
  • †Prosqualodon australis – type locality for species
  • †Prosqualodon australis
• †Prostegotherium – tentative report
• †Prostegotherium
  • †Prostegotherium astrifer – type locality for species
  • †Prostegotherium astrifer – or unidentified comparable form
  • †Prostegotherium notostylopianum – type locality for species
  • †Prostegotherium notostylopianum
  • †Prostegotherium sp.
• †Prostichomys
  • †Prostichomys bowni – or unidentified comparable form
  • †Prostichomys bowni
• †Prostylophorus – type locality for genus
  • †Prostylophorus margeriei – type locality for species
• †Protabrocoma
  • †Protabrocoma sp.
• †Protacaremys – tentative report
• †Protacaremys
  • †Protacaremys adilos – type locality for species
  • †Protacaremys avunculus
  • †Protacaremys denisae – type locality for species
  • †Protacaremys prior
  • †Protacaremys pulchellus
  • †Protacaremys sp.
• †Protadelphomys
  • †Protadelphomys latus
• †Protamandua – type locality for genus
• †Protamandua
  • †Protamandua rothi – type locality for species
  • †Protamandua rothi
• †Protarchaeohyrax
  • †Protarchaeohyrax minor – type locality for species
  • †Protarchaeohyrax minor
• †Protautoga
  • †Protautoga longidens
• †Proteacidites
  • †Proteacidites angulatus
  • †Proteacidites asperatus – or unidentified comparable form
  • †Proteacidites granulatus
  • †Proteacidites obscurus
  • †Proteacidites parvus
  • †Proteacidites pseudomoides
  • †Proteacidites sp.
  • †Proteacidites sp. 1informal
  • †Proteacidites sp. 2informal
  • †Proteacidites sp. 3informal
  • †Proteacidites sp. 4informal
  • †Proteacidites sp. Ainformal
  • †Proteacidites sp. Binformal
  • †Proteacidites sp. Cinformal
  • †Proteacidites sp. Dinformal
  • †Proteacidites stipplatus
  • †Proteacidites subscabratus
  • †Proteacidites symphyonemoides
  • †Proteacidites tenuiexinus
• †Proterocara – type locality for genus
  • †Proterocara argentina – type locality for species
• †Proterocarcinus
  • †Proterocarcinus corsolini – type locality for species
  • †Proterocarcinus latus
  • †Proterocarcinus lophos – type locality for species
• †Proterocarinus
  • †Proterocarinus latis
• †Proterotherium
  • †Proterotherium americanum
  • †Proterotherium australis
  • †Proterotherium cervioides
  • †Proterotherium gradatum
• †Protheosodon
  • †Protheosodon coniferus
• †Prothoatherium
  • †Prothoatherium lacerum
• †Prothylacynus – type locality for genus
• †Prothylacynus
  • †Prothylacynus patagonicus – type locality for species
  • †Prothylacynus patagonicus
• †Protibis
  • †Protibis cnemialis
• †Protobradys – type locality for genus
  • †Protobradys harmonicus – type locality for species
• †Protocallianassa
  • †Protocallianassa sp.
• †Protocyon
  • †Protocyon scagliaruen
• †Protodidelphis
  • †Protodidelphis – or unidentified comparable form sp. nov.informal
  • †Protodidelphis sp.
  • †Protodidelphis sp. nov.informal
• †Protoglyptodon
  • †Protoglyptodon primiformis
• †Protomegalonyx
  • †Protomegalonyx chasicoensis
  • †Protomegalonyx doellojuradoi
  • †Protomegalonyx praecursor
• †Protomegamys
  • †Protomegamys sp.
• †Protorhea – type locality for genus
  • †Protorhea azarae – type locality for species
• †Protosteiromys
  • †Protosteiromys asmeodeophilus – type locality for species
  • †Protosteiromys asmodeophilus
  • †Protosteiromys medianus – type locality for species
  • †Protosteiromys medianus
• †Protypotherium – or unidentified comparable form
• †Protypotherium
  • †Protypotherium antiquum
  • †Protypotherium attenuatum
  • †Protypotherium australe
  • †Protypotherium praerutilum
  • †Protypotherium sp.
• †Proxapertites
  • †Proxapertites operculatus
  • †Proxapertites sp.
• †Prozaedyus – tentative report
• †Prozaedyus
  • †Prozaedyus exilis
  • †Prozaedyus humilis
  • †Prozaedyus impressus – or unidentified related form
  • †Prozaedyus impressus
  • †Prozaedyus planus
  • †Prozaedyus proximus
  • †Prozaedyus sp.
• †Prunum
  • †Prunum sp.
• †Psammechinus
  • †Psammechinus iheringi
  • †Psammechinus lahillei – type locality for species
  • †Psammechinus tournoueri – type locality for species
• †Pseudeutatus – type locality for genus
• †Pseudeutatus – tentative report
• †Pseudeutatus
  • †Pseudeutatus circundatus – type locality for species
  • †Pseudeutatus clypeus – type locality for species
  • †Pseudeutatus cuneiformis – type locality for species
  • †Pseudeutatus depictus – type locality for species
  • †Pseudeutatus depictus
  • †Pseudeutatus sp.
• †Pseudhalmarhiphus
  • †Pseudhalmarhiphus guaraniticus – type locality for species
• †Pseudhyrax – type locality for genus
• †Pseudhyrax
  • †Pseudhyrax eutrachytheroides – type locality for species
  • †Pseudhyrax eutrachytheroides – tentative report
  • †Pseudhyrax eutrachytheroides
  • †Pseudhyrax strangulatus – type locality for species
  • †Pseudhyrax strangulatus
• †Pseudoacaremys – type locality for genus
• †Pseudoacaremys
  • †Pseudoacaremys kramarzi – type locality for species
  • †Pseudoacaremys kramarzi
• †Pseudocladosictis
  • †Pseudocladosictis determinabile – type locality for species
• †Pseudoeuryurus
  • †Pseudoeuryurus lelongianus
• †Pseudofax
  • †Pseudofax costellatus
  • †Pseudofax solitaria
• †Pseudoglyptodon
  • †Pseudoglyptodon chilensis – or unidentified comparable form
  • †Pseudoglyptodon sp.
• †Pseudolimea
  • †Pseudolimea sp.
  • †Pseudolimea symmetricainformal
• †Pseudolops – type locality for genus
  • †Pseudolops princeps – type locality for species
• †Pseudolycopsis
  • †Pseudolycopsis cabrerai
• †Pseudomacrauchenia
  • †Pseudomacrauchenia yepesi
• †Pseudonotictis
  • †Pseudonotictis pusillus – type locality for species
  • †Pseudonotictis pusillus
• †Pseudopachyrucos – type locality for genus
  • †Pseudopachyrucos foliiformis – type locality for species
• †Pseudoplataeomys
  • †Pseudoplataeomys formosus
• †Pseudoportlandia
  • †Pseudoportlandia glabra
• †Pseudoschizaea
  • †Pseudoschizaea circula
• †Pseudosigmomys
  • †Pseudosigmomys sp.
• †Pseudospheniscus
  • †Pseudospheniscus concavus
• †Pseudostegotherium – report made of unidentified related form or using admittedly obsolete nomenclature
• †Pseudostegotherium
  • †Pseudostegotherium chubutanum – type locality for species
  • †Pseudostegotherium glangeaudi
• †Pseudothylacynus – type locality for genus
  • †Pseudothylacynus rectus – type locality for species
• †Pseudotoxodon
  • †Pseudotoxodon formosus
• †Pseudotylostoma
  • †Pseudotylostoma romeroi – or unidentified comparable form
  • †Pseudotylostoma romeroi
  • †Pseudotylostoma sp.
• †Pseudotypotherium
  • †Pseudotypotherium bravardi
  • †Pseudotypotherium carhuense
  • †Pseudotypotherium sp.
  • †Pseudotypotherium subinsigne
• †Pseudowinterapollis
  • †Pseudowinterapollis couperi
• †Psewdowinterapollis
  • †Psewdowinterapollis couperi
• †Psidium
  • †Psidium araciforme – type locality for species
• †Psilamonocolpites
  • †Psilamonocolpites grandis
• †Psilaperiporites
  • †Psilaperiporites minimus – or unidentified comparable form
• †Psilatricolpites
  • †Psilatricolpites inargutus
  • †Psilatricolpites patagonicus
  • †Psilatricolpites psilascabratus
  • †Psilatricolpites sp.
• †Psilatricolporites
  • †Psilatricolporites cyamus
  • †Psilatricolporites salamanquensis – or unidentified comparable form
  • †Psilatricolporites salamanquensis
  • †Psilatricolporites sp.
  • †Psilatricolporites sp. – or unidentified comparable form salamanquensisinformal
  • †Psilatricolporites sp. – or unidentified comparable form salamanquesisinformal
  • †Psilatricolporites sp. 1informal
  • †Psilatricolporites sp. 2informal
• †Psilonichnus
  • †Psilonichnus sp.
• †Psilopterus – type locality for genus
• †Psilopterus
  • †Psilopterus bachmanni – type locality for species
  • †Psilopterus bachmanni
  • †Psilopterus colzecus
  • †Psilopterus lemoinei – type locality for species
  • †Psilopterus lemoinei
• †Pteris
  • †Pteris nirihuaoensis – type locality for species
  • †Pteris sp.
• †Pterocnemia
  • †Pterocnemia pennata
• †Pterodonta
  • †Pterodonta patagonica
• †Pteromyrtea
  • †Pteromyrtea crucialis
  • †Pteromyrtea danieli
  • †Pteromyrtea sp.
• †Pteronura
  • †Pteronura brasiliensis
• †Pucatherium
  • †Pucatherium parvum
• †Puelia – type locality for genus
• †Puelia – tentative report
• †Puelia
  • †Puelia plicata – type locality for species
  • †Puelia sigma – type locality for species
  • †Puelia sp.
• † Puma
  • †Puma concolor
  • †Puma sp.
• †Punadolops
  • †Punadolops alonsoi – type locality for species
  • †Punadolops alonsoi
• †Punahyrax – type locality for genus
• †Punahyrax
  • †Punahyrax bondesioi – type locality for species
  • †Punahyrax bondesioi
  • †Punahyrax sp.
• †Punapithecus – type locality for genus
• †Punapithecus
  • †Punapithecus minor – type locality for species
  • †Punapithecus minor
• †Punatherium – type locality for genus
  • †Punatherium catamarcensis – type locality for species
• †Purpura
  • †Purpura chicoana
• †Purpurocardia
  • †Purpurocardia sp.
• †Pycnodonte
  • †Pycnodonte burckhardti
  • †Pycnodonte miradonensis
  • †Pycnodonte vesicularis
• †Pygopistes
  • †Pygopistes parrasae – type locality for species
• †Pyramidon – type locality for genus
  • †Pyramidon klaatschi – type locality for species
• †Pyramiodontherium
  • †Pyramiodontherium bergi
  • †Pyramiodontherium carlesi – tentative report
  • †Pyramiodontherium scillatoyanei – type locality for species
  • †Pyramiodontherium sp.
• †Pyropsis – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Pyropsis sp.
• †Pyrotherium
  • †Pyrotherium romeroi
  • †Pyrotherium sorondoi
  • †Pyrotherium sp.
• †Quintiniapollis
  • †Quintiniapollis sp.1informal
  • †Quintiniapollis striatulosa
• †Radiodiscus
  • †Radiodiscus sp.
• †Raja
  • †Raja agassizi
• †Ranculcus
  • †Ranculcus scalabrinianus
• †Raninoides
  • †Raninoides sp.
• †Ranunculacidites
  • †Ranunculacidites operculatus
• †Raulvaccia – type locality for genus
  • †Raulvaccia peligrensis – type locality for species
• †Rboipites
  • †Rboipites cienaguensis – or unidentified comparable form
• †Reboulisporites – type locality for genus
• †Reboulisporites
  • †Reboulisporites fuegiensis – type locality for species
  • †Reboulisporites fuegiensis
• †Reigechimys
  • †Reigechimys octodontiformis
  • †Reigechimys plesiodon – or unidentified comparable form
  • †Reigechimys plesiodon
• †Reigia – type locality for genus
  • †Reigia punae – type locality for species
• †Reithrodon
  • †Reithrodon auritus
  • †Reithrodon physodes – or unidentified comparable form
  • †Reithrodon physodes
• †Remijia
  • †Remijia tenuiflorafolia – type locality for species
• †Requisia – type locality for genus
  • †Requisia vidmari – type locality for species
• †Restioniidites
  • †Restioniidites pascualii – type locality for species
  • †Restioniidites pascualii
• †Reticulatisporites
  • †Reticulatisporites sp.
• †Reticulatosphaera – tentative report
• †Reticulatosphaera
  • †Reticulatosphaera actinocoronata
• †Reticulochlamys
  • †Reticulochlamys borjasensis
  • †Reticulochlamys borjasiensis
  • †Reticulochlamys proxima
  • †Reticulochlamys zinsmeisteri
• †Reticuloidosporites
  • †Reticuloidosporites tenellis – or unidentified comparable form
  • †Reticuloidosporites tenellis
• †Retidiporites
  • †Retidiporites camachoi – type locality for species
  • †Retidiporites camachoi
• †Retistephanocolpites
  • †Retistephanocolpites sp.
• †Retitricolporites
  • †Retitricolporites chubutensis – type locality for species
  • †Retitricolporites chubutensis – or unidentified comparable form
  • †Retitricolporites chubutensis
  • †Retitricolporites minutiformis – or unidentified comparable form
  • †Retitricolporites minutiformis
  • †Retitricolporites sp. 1informal
• †Retitriletes
  • †Retitriletes austroclavatidites
  • †Retitriletes eminulus
  • †Retitriletes rosewoodensis
  • †Retitriletes spp.
• †Retritricolporites
  • †Retritricolporites cienaguensis
• †Retrotapes
  • †Retrotapes exalbida
  • †Retrotapes scutata
  • †Retrotapes striatolamellata
• †Retusa
  • †Retusa scutata – or unidentified comparable form
• †Rhabdosporites
  • †Rhabdosporites sp.
• †Rhamnidium – tentative report
• †Rhamnidium – report made of unidentified related form or using admittedly obsolete nomenclature
• †Rhamnidium
  • †Rhamnidium patagonicum – type locality for species
  • †Rhamnidium preglabrum – type locality for species
  • †Rhamnidium TY025informal
• †Rhamphostomopsis – type locality for genus
• †Rhamphostomopsis
  • †Rhamphostomopsis neogaeus – type locality for species
• †Rhea
  • †Rhea americana – or unidentified comparable form
  • †Rhea americana
  • †Rhea fossilis – type locality for species
  • †Rhea pampeana – type locality for species
  • †Rhea sp.
  • †Rhea subpampeana – type locality for species
• †Rhinella
  • †Rhinella pisanoi – or unidentified comparable form
• †Rhizophagites
  • †Rhizophagites butleri
• †Rhizophoroxylon
  • †Rhizophoroxylon spallettii – type locality for species
• †Rhodonascia
  • †Rhodonascia sp.
• †Rhoipites
  • †Rhoipites alveolatus
  • †Rhoipites baculatus – type locality for species
  • †Rhoipites baculatus
  • †Rhoipites cienaguensis
  • †Rhoipites exiguus
  • †Rhoipites karamuensis
  • †Rhoipites minusculus – type locality for species
  • †Rhoipites minusculus
  • †Rhoipites romeroi
  • †Rhoipites santafesii
  • †Rhoipites sp.
  • †Rhoipites sp. Ainformal
  • †Rhoipites sphaerica
  • †Rhoipites spp.
• †Rhoophyllum
  • †Rhoophyllum nordenskjoldi
• †Rhynchippus – tentative report
• †Rhynchippus
  • †Rhynchippus equinus
  • †Rhynchippus pumilus
• †Rhyphodon – type locality for genus
• †Rhyphodon
  • †Rhyphodon angusticephalus – type locality for species
  • †Rhyphodon lankesteri – type locality for species
  • †Rhyphodon lankesteri
• †Ribodon – type locality for genus
  • †Ribodon limbatus – type locality for species
• †Ricardolydekkeria – type locality for genus
• †Ricardolydekkeria
  • †Ricardolydekkeria cinctula – type locality for species
  • †Ricardolydekkeria lunulata – type locality for species
  • †Ricardolydekkeria praerupta – type locality for species
  • †Ricardolydekkeria praerupta – or unidentified comparable form
  • †Ricardolydekkeria profunda – type locality for species
  • †Ricardolydekkeria sp.
• †Ricciaesporites
  • †Ricciaesporites sp.
• †Ricciopsis
  • †Ricciopsis sp.
• †Ringueletia
  • †Ringueletia simpsoni
• †Riostegotherium
  • †Riostegotherium sp.
• †Robus
  • †Robus primaverae
• †Rochinia
  • †Rochinia boschii
  • †Rochinia hystrixex gr.
• †Rollinia – tentative report
  • †Rollinia patagonica – type locality for species
• †Romaleon
  • †Romaleon parspinosus
• †Rondeletia
  • †Rondeletia longiflorifolia – type locality for species
• †Rosannia
  • †Rosannia manika
• †Rosendolops – type locality for genus
• †Rosendolops
  • †Rosendolops ebaios – type locality for species
  • †Rosendolops ebaios – or unidentified comparable form
  • †Rosendolops primigenium – type locality for species
  • †Rosendolops primigenium
  • †Rosendolops sp.
• †Rostellaria – tentative report
• †Rostellaria – report made of unidentified related form or using admittedly obsolete nomenclature
• †Rostellaria
  • †Rostellaria dusenianus – or unidentified related form
  • †Rostellaria elegans
  • †Rostellaria noachinus
  • †Rostellaria sp.
  • †Rostellaria stromeri
  • †Rostellaria torosus
• †Rotadiscus
  • †Rotadiscus sp.
• †Rousea
  • †Rousea microreticulata
  • †Rousea minuscula
  • †Rousea patagonica – type locality for species
  • †Rousea patagonica
  • †Rousea sp.
• †Rouseisporites
  • †Rouseisporites sp.
• †Rubiacites
  • †Rubiacites chomeliifolia – type locality for species
• †Rubipollis
  • †Rubipollis oblatus
• †Rubus
  • †Rubus sp.
• †Rugulatisporites
  • †Rugulatisporites caperatus
  • †Rugulatisporites chubutensis
• †Rugumonoporites
  • †Rugumonoporites sp. Ainformal
• †Ruprechtia
  • †Ruprechtia latipedunculata – type locality for species
• †Rutimeyeria – type locality for genus
  • †Rutimeyeria conulifera – type locality for species
• †Sabalpollenites
  • †Sabalpollenites sp.
• †Saccella
  • †Saccella pueyrredona
  • †Saccella tumida – or unidentified comparable form
• †Sadypus
  • †Sadypus ascendens – type locality for species
  • †Sadypus confluens – type locality for species
  • †Sadypus confluens – or unidentified related form
  • †Sadypus confluens
  • †Sadypus minutus – type locality for species
  • †Sadypus tortuosus
• †Sagmatias
  • †Sagmatias australis
• †Salacia
  • †Salacia floribundifolia – type locality for species
• †Sallacyon – or unidentified comparable form
  • †Sallacyon hoffstetteri
• †Salvinia
  • †Salvinia graui
  • †Salvinia minima – or unidentified comparable form
• †Santiagorothia
  • †Santiagorothia chiliensis
• †Sapindus
  • †Sapindus argentinus – type locality for species
  • †Sapindus argentinus
  • †Sapindus sp.
• †Sarcoramphus
  • †Sarcoramphus fossilis – type locality for species
• †Sargus
  • †Sargus incertus
• †Sassia – report made of unidentified related form or using admittedly obsolete nomenclature
• †Sassia
  • †Sassia armata
  • †Sassia bicegoi
  • †Sassia mathewi – or unidentified related form
  • †Sassia matthewi – or unidentified related form
  • †Sassia morgani
• †Satshatemnus – type locality for genus
  • †Satshatemnus bonapartei – type locality for species
• †Saurocetes – type locality for genus
• †Saurocetes
  • †Saurocetes argentinus – type locality for species
  • †Saurocetes gigas – type locality for species
• †Savatieria
  • †Savatieria frigida
• †Saxegothopsis
  • †Saxegothopsis fuegianus
• †Scaglia – type locality for genus
  • †Scaglia kraglievichorum – type locality for species
• †Scalabrinitherium
  • †Scalabrinitherium bravardi
  • †Scalabrinitherium paranense
  • †Scalabrinitherium rothii
• †Scalaria
  • †Scalaria minuta
  • †Scalaria rugulosa
• †Scaphander
  • †Scaphander sp.
• †Scapteromys
  • †Scapteromys hershkovitzi
• †Scarrittia – type locality for genus
• †Scarrittia
  • †Scarrittia barranquensis – type locality for species
  • †Scarrittia barranquensis
  • †Scarrittia canquelensis – type locality for species
  • †Scarrittia canquelensis – or unidentified comparable form
• †Scelidodon – tentative report
• †Scelidodon
  • †Scelidodon chiliense
  • †Scelidodon sp.
• †Scelidotheridium
  • †Scelidotheridium sp.
• †Scelidotherium
  • †Scelidotherium leptocephalum – or unidentified comparable form
  • †Scelidotherium leptocephalum
  • †Scelidotherium pendolai
  • †Scelidotherium sp.
• †Scenedesmus
  • †Scenedesmus sp.
• †Schinopsis
  • †Schinopsis balansiformis – type locality for species
  • †Schinopsis lorentzii – tentative report
  • †Schinopsis lorentzii – or unidentified related form
  • †Schinopsis lorentzii
  • †Schinopsis morongifolia – type locality for species
  • †Schinopsis patagonica – type locality for species
• †Schinus
  • †Schinus herbstii
  • †Schinus molleformis – type locality for species
• †Schismotherium
  • †Schismotherium rectangularis – type locality for species
• †Schizaster – tentative report
• †Schizaster
  • †Schizaster ameghinoi
  • †Schizaster patagonensis
  • †Schizaster sp.
• †Schizosporis
  • †Schizosporis reticulatus
• †Schmidelia – report made of unidentified related form or using admittedly obsolete nomenclature
• †Schmidelia
  • †Schmidelia eduliforma – type locality for species
  • †Schmidelia graciliforma – type locality for species
  • †Schmidelia proedulis – type locality for species
  • †Schmidelia proedulis
• †Sciamys
  • †Sciamys petisensis – type locality for species
  • †Sciamys sp.
• †Scirpites
  • †Scirpites sp.
• †Scirpitis
  • †Scirpitis sp.
• †Scirrotherium
  • †Scirrotherium carinatum – type locality for species
  • †Scirrotherium carinatum
• †Scissurella – tentative report
• †Scissurella
  • †Scissurella scotti
  • †Scissurella timora – tentative report
• †Sclerocalyptus
  • †Sclerocalyptus ornatus – or unidentified comparable form
• †Scleromys
  • †Scleromys osbornianus
  • †Scleromys quadrangulatus – type locality for species
  • †Scleromys quadrangulatus
  • †Scleromys sp.
• †Sconcia
  • †Sconcia ovolum
• †Sconsia
  • †Sconsia magdai
• †Scotamys – type locality for genus
• †Scotamys
  • †Scotamys antiquus – type locality for species
  • †Scotamys antiquus
• †Scotobius
  • †Scotobius pilularius
• †Scurria
  • †Scurria scurra
• †Scutella
  • †Scutella innominata
• †Sebecus – type locality for genus
• †Sebecus – tentative report
• †Sebecus – or unidentified comparable form
• †Sebecus
  • †Sebecus icaeorhinus – type locality for species
  • †Sebecus icaeorhinus
  • †Sebecus sp.
• †Selaginella
  • †Selaginella perinata
• †Selenopemphix
  • †Selenopemphix coronata – or unidentified comparable form
  • †Selenopemphix crenata – or unidentified comparable form
  • †Selenopemphix sp.
  • †Selenopemphix warriensis
• †Senipites
  • †Senipites patagonica
  • †Senipites patogonica
  • †Senipites sp.
  • †Senipites sp.1informal
  • †Senipites tercrassata – type locality for species
  • †Senipites tercrassata
• †Senna
  • †Senna sp.
• †Senoniasphaera
  • †Senoniasphaera inornata
• †Sepedonium
  • †Sepedonium sp.
• †Septifer
  • †Septifer mayai – type locality for species
• †Serjania
  • †Serjania sp.
• †Serpula – report made of unidentified related form or using admittedly obsolete nomenclature
• †Serpula
  • †Serpula patagonica
  • †Serpula sp.
• †Serratina
  • †Serratina sp.
• †Sestrosporites
  • †Sestrosporites pseudoalveolatus
• †Seudenius – type locality for genus
  • †Seudenius cteronc – type locality for species
• †Shecenia – type locality for genus
• †Shecenia
  • †Shecenia ctirneru – type locality for species
  • †Shecenia sp.
• †Shelania – type locality for genus
• †Shelania
  • †Shelania laurenti – type locality for species
  • †Shelania pascuali – type locality for species
  • †Shelania pascuali
• †Siderastrea
  • †Siderastrea adkinsi
• †Sideroseris
  • †Sideroseris durhami
• †Sigapatella
  • †Sigapatella americana
• †Silurus
  • †Silurus agassizii
• †Simpsonotus – type locality for genus
• †Simpsonotus
  • †Simpsonotus major – type locality for species
  • †Simpsonotus major
  • †Simpsonotus praecursor – type locality for species
• †Sinhapalops
  • †Sinhapalops jujuyensis – tentative report
• †Sipalocyon
  • †Sipalocyon externus – type locality for species
  • †Sipalocyon gracilis – type locality for species
  • †Sipalocyon gracilis
  • †Sipalocyon obusta – type locality for species
  • †Sipalocyon sp.
• †Siphocypraea
  • †Siphocypraea posei
• †Siphonalia – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Siphonalia noachina
  • †Siphonalia ortmanni
• †Siphonaria
  • †Siphonaria lessoni
• †Smilacipites
  • †Smilacipites saltensis
  • †Smilacipites sp.
• †Smilodon
  • †Smilodon bonaerensis
  • †Smilodon ensenadenis
  • †Smilodon populator
  • †Smilodon riggi
  • †Smilodon riggii
  • †Smilodon sp.
• †Solanumxylon
  • †Solanumxylon paranensis – type locality for species
• †Solariella
  • †Solariella dautzembergi
  • †Solariella osborni
• †Solea
  • †Solea sp.
• †Solena
  • †Solena crucis
  • †Solena hunickeni – type locality for species
• †Soriacebus – or unidentified comparable form
• †Soriacebus
  • †Soriacebus adrianae – type locality for species
  • †Soriacebus adrianae
  • †Soriacebus ameghinorum – type locality for species
  • †Soriacebus ameghinorum – or unidentified comparable form
  • †Soriacebus ameghinorum
  • †Soriacebus sp.
• †Soriamys – type locality for genus
• †Soriamys
  • †Soriamys gaimanensis – type locality for species
  • †Soriamys ganganensis – type locality for species
  • †Soriamys sp.
• †Spaniomys
  • †Spaniomys modestus
• †Sparassocynus
  • †Sparassocynus sp.
• †Sparganiaceaepollenites
  • †Sparganiaceaepollenites barungensis
  • †Sparganiaceaepollenites delicata
  • †Sparganiaceaepollenites sp.
  • †Sparganiaceaepollenites sphericus
• †Sparnotheriodon
  • †Sparnotheriodon epsilonoides
• †Sparus
  • †Sparus antiquus
• †Sphenotherus
  • †Sphenotherus paranensis
  • †Sphenotherus zavaletianus
• †Sphenotrochus
  • †Sphenotrochus gardineri – or unidentified related form
• †Sphirna
  • †Sphirna prisca
• †Sphyrna
  • †Sphyrna sp.
• †Spineilo
  • †Spineilo elongata – or unidentified comparable form
  • †Spineilo perdita
• †Spiniferidae
  • †Spiniferidae spp.
• †Spiniferites
  • †Spiniferites mirabilis
  • †Spiniferites sp.
• †Spinitricolpites
  • †Spinitricolpites sp.
• †Spinizonocolpites
  • †Spinizonocolpites complex
  • †Spinizonocolpites hialinus
  • †Spinizonocolpites sp.
  • †Spinizonocolpites spp.
• †Spirocolpus – report made of unidentified related form or using admittedly obsolete nomenclature
• †Spirocolpus
  • †Spirocolpus adapicis
  • †Spirocolpus feruglioi
  • †Spirocolpus pyramidesia
• †Spirogalerus
  • †Spirogalerus laevis – or unidentified comparable form
• †Spirogyra
  • †Spirogyra sp. 1informal
  • †Spirogyra sp. 2informal
  • †Spirogyra sp. Tipo Ainformal
  • †Spirogyra sp. Tipo Binformal
  • †Spirogyra sp. Tipo Cinformal
• †Spissatella
  • †Spissatella longior
  • †Spissatella lyelli
• †Squalus
  • †Squalus eocenus
  • †Squalus obliquidens
  • †Squalus sp.
• †Squatina
  • †Squatina sp.
• †Srivastavapollenites
  • †Srivastavapollenites exoticus
• †Staurodon
  • †Staurodon supernus – type locality for species
• †Staurolithites
  • †Staurolithites sp.
• †Stegomastodon
  • †Stegomastodon platensis – or unidentified comparable form
  • †Stegomastodon platensis
  • †Stegomastodon sp.
  • †Stegomastodon superbus
• †Stegosimpsonia
  • †Stegosimpsonia sp.
• †Stegotherium
  • †Stegotherium notohippidensis – type locality for species
  • †Stegotherium notohippidensis
  • †Stegotherium tauberi
  • †Stegotherium tesselatum
  • †Stegotherium variegatum
• †Steiromys
  • †Steiromys detentus
  • †Steiromys duplicatus
  • †Steiromys principalis
• †Stenogenium
  • †Stenogenium aenigmaticum – type locality for species
• †Stenotatus – tentative report
• †Stenotatus – or unidentified comparable form
• †Stenotatus
  • †Stenotatus hesternus
  • †Stenotatus ornatus – or unidentified related form
  • †Stenotatus sp.
• †Stenotephanos
  • †Stenotephanos plicidens
• †Stephadiscus
  • †Stephadiscus sp.
• †Stephanoda
  • †Stephanoda mazzonii – tentative report
• †Sterculia – report made of unidentified related form or using admittedly obsolete nomenclature
• †Sterculia
  • †Sterculia acuminataloba – type locality for species
  • †Sterculia acuminataloba
  • †Sterculia guinazui – type locality for species
  • †Sterculia patagonica – type locality for species
  • †Sterculia patagonica
  • †Sterculia washburnii – type locality for species
  • †Sterculia washburnii
• †Stereisporites
  • †Stereisporites antiquasporites
  • †Stereisporites regium
  • †Stereisporites sp.
  • †Stereisporites sp. 2informal
• †Stichomys
  • †Stichomys sp.
• †Stilotherium – type locality for genus
• †Stilotherium
  • †Stilotherium dissimile – type locality for species
  • †Stilotherium dissimile
• †Strabosodon
  • †Strabosodon acuticavus
  • †Strabosodon obtusicavus
• †Stramonita
  • †Stramonita homogeneus
• †Striasyncolpites
  • †Striasyncolpites laxus
• †Striatopollis
  • †Striatopollis exiguus
  • †Striatopollis sp.
• †Striatricolpopites
  • †Striatricolpopites gamerroi
• †Striatricolporites
  • †Striatricolporites gamerroi – type locality for species
  • †Striatricolporites gamerroi
• †Stromaphorus
  • †Stromaphorus compressidens
  • †Stromaphorus sp.
• †Strophostephanos
  • †Strophostephanos sp.
• †Struthiochenopus
  • †Struthiochenopus santacrucensis
• †Struthiolarella
  • †Struthiolarella ameghinoi
  • †Struthiolarella cuevensis
  • †Struthiolarella densestriata
  • †Struthiolarella fueguina – or unidentified related form
  • †Struthiolarella multinodosa
  • †Struthiolarella ornata
  • †Struthiolarella patagoniensis
  • †Struthiolarella senoniana
• †Struthiolaria
  • †Struthiolaria hatcheri
  • †Struthiolaria ornata
  • †Struthiolaria senoniana
• †Struthiolariopsis
  • †Struthiolariopsis ferrieri – or unidentified related form
• †Struthioptera
  • †Struthioptera osiris – or unidentified related form
  • †Struthioptera sp.
• †Strychnos
  • †Strychnos mirhojana – type locality for species
  • †Strychnos patagonica
• †Styloceras
  • †Styloceras tertiarium – type locality for species
• †Stylocynus – type locality for genus
• †Stylocynus
  • †Stylocynus paranensis – type locality for species
  • †Stylocynus paranensis
• †Styrax
  • †Styrax acuminatiformis – type locality for species
  • †Styrax acuminatiformis
  • †Styrax glandulifera – type locality for species
• †Succinea
  • †Succinea meridionalis
• †Sudamerica – type locality for genus
• †Sudamerica
  • †Sudamerica ameghinoi – type locality for species
  • †Sudamerica ameghinoi
• †Suniodon – type locality for genus
• †Suniodon
  • †Suniodon catamarcensis – type locality for species
  • †Suniodon sp.
• †Sveltia
  • †Sveltia major
• †Symplocos
  • †Symplocos commutatifolia – type locality for species
• †Syndemicolpites
  • †Syndemicolpites petriellai – type locality for species
  • †Syndemicolpites petriellai
• †Tabebuia
  • †Tabebuia ipiformis – type locality for species
• †Tacheria – type locality for genus
  • †Tacheria troyana – type locality for species
• †Tafimys – type locality for genus
  • †Tafimys powelli – type locality for species
• †Tagelus
  • †Tagelus plebeius
• †Taioma
  • †Taioma tricarinata – or unidentified comparable form
• †Tanyosphaeridium
  • †Tanyosphaeridium sp.
• †Tapes
  • †Tapes sp.
• †Tapirus
  • †Tapirus greslebini – type locality for species
  • †Tapirus mesopotamicus – type locality for species
• †Tasmacetus
  • †Tasmacetus shepherdi
• †Tasmanites
  • †Tasmanites sp.
  • †Tasmanites spp.
• †Tawera
  • †Tawera canalei
  • †Tawera gayi
• †Tayassu
  • †Tayassu pecari
  • †Tayassu sp.
  • †Tayassu tajacu
• †Tegula
  • †Tegula abavus
  • †Tegula americanus
  • †Tegula jeguaensis
  • †Tegula orbignyana
  • †Tegula princeps
  • †Tegula sp.
• †Tegulorhynchia
  • †Tegulorhynchia squamosa
• †Teinostoma
  • †Teinostoma andrium – or unidentified related form
  • †Teinostoma sp. Ainformal
  • †Teinostoma sp. Binformal
• †Tellina – tentative report
• †Tellina
  • †Tellina jeguaensis
  • †Tellina ovalleana
  • †Tellina patagonica – tentative report
  • †Tellina patagonica
  • †Tellina sp.
• †Telmabates – type locality for genus
• †Telmabates
  • †Telmabates antiquus – type locality for species
  • †Telmabates howardae – type locality for species
• †Tenagodus
  • †Tenagodus cossmani
• †Tenebrionites
  • †Tenebrionites inclinans
• †Terebra
  • †Terebra laudata
  • †Terebra santacruzensis
• †Terebratella
  • †Terebratella dorsata
  • †Terebratella paliquena
  • †Terebratella patagonica
  • †Terebratella sp.
  • †Terebratella sp. Ainformal
  • †Terebratella sp. Binformal
• †Terminalioxylon
  • †Terminalioxylon concordiensis – type locality for species
• †Testudo
  • †Testudo formosa – type locality for species
• †Tetracera – report made of unidentified related form or using admittedly obsolete nomenclature
• †Tetracera
  • †Tetracera patagonica – type locality for species
  • †Tetracera patagonica
  • †Tetracera sp.
• †Tetracolporites
  • †Tetracolporites spectabilis
• †Tetracolporopollenites
  • †Tetracolporopollenites costatus
  • †Tetracolporopollenites megadolium
• †Tetraedron
  • †Tetraedron minimum – or unidentified comparable form
• †Tetramerorhinus
  • †Tetramerorhinus cingulatum – tentative report
  • †Tetramerorhinus cingulatum
  • †Tetramerorhinus fleaglei – type locality for species
  • †Tetramerorhinus fleaglei
  • †Tetramerorhinus fortis – type locality for species
  • †Tetramerorhinus lucarius
  • †Tetramerorhinus mixtum – type locality for species
  • †Tetramerorhinus mixtum
  • †Tetramerorhinus prosistens
  • †Tetramerorhinus sp.
• †Tetrapteris
  • †Tetrapteris precrebrifolia – type locality for species
• †Tetrastylus – tentative report
• †Tetrastylus
  • †Tetrastylus araucanus
  • †Tetrastylus intermedius
  • †Tetrastylus sp.
• †Thalassinoides
  • †Thalassinoides sp.
• †Thaumastoplax
  • †Thaumastoplax rocaensis – type locality for species
• †Thegornis
  • †Thegornis debilis
  • †Thegornis musculosus
• †Theosodon – or unidentified comparable form
• †Theosodon
  • †Theosodon garrettorum – type locality for species
  • †Theosodon gracilis
  • †Theosodon lydekkeri – type locality for species
  • †Theosodon lydekkeri
  • †Theosodon sp.
• †Theridomysops
  • †Theridomysops parvulus
• †Theriodictis
  • †Theriodictis sp.
• †Thoatherium
  • †Thoatherium minusculum
  • †Thoatherium sp.
• †Thomashuxleya – type locality for genus
• †Thomashuxleya – or unidentified related form
• †Thomashuxleya
  • †Thomashuxleya externa – type locality for species
  • †Thomashuxleya externa
  • †Thomashuxleya principialis – type locality for species
  • †Thomashuxleya rostrata – type locality for species
  • †Thomashuxleya rostrata
  • †Thomashuxleya sp.
• †Thouinia
  • †Thouinia philippii
• †Thracia – tentative report
  • †Thracia sp.
• †Thylacosmilus
  • †Thylacosmilus atrox – or unidentified comparable form
  • †Thylacosmilus atrox
• †Thylamys
  • †Thylamys pinei – type locality for species
  • †Thylamys pinei
  • †Thylamys pusillus
  • †Thylamys sp.
• †Thylatheridium
  • †Thylatheridium dolgopolae
  • †Thylatheridium hudsoni
  • †Thylatheridium pascuali
  • †Thylatheridium sp.
• †Thylophorops
  • †Thylophorops chapalmalensis
• †Thyridates
  • †Thyridates novokschonovi – type locality for species
• †Tibouchina
  • †Tibouchina sp.
• †Tinamisornis
  • †Tinamisornis intermedius
  • †Tinamisornis parvulus
• †Tindariopsis
  • †Tindariopsis sulculata
• †Tinea
  • †Tinea biselliella
• †Titanothentes
  • †Titanothentes sp.
• †Todisporites
  • †Todisporites major
  • †Todisporites minor – or unidentified comparable form
  • †Todisporites minor
  • †Todisporites sp.
• †Tolypeutes
  • †Tolypeutes pampaeus
  • †Tolypeutes sp.
  • †Tolypeutes tricinctus – or unidentified comparable form
  • †Tolypeutes tricinctus
• †Tonostylops – type locality for genus
  • †Tonostylops spissus – type locality for species
• †Torcellia
  • †Torcellia paranense
• †Torcula
  • †Torcula magna
• †Tornatellacea
  • †Tornatellacea patagonicus
• †Tornatellaea – or unidentified comparable form
• †Tornatellaea
  • †Tornatellaea guillermoi
  • †Tornatellaea morbosa – or unidentified comparable form
  • †Tornatellaea patagonica – or unidentified related form
  • †Tornatellaea sp.
• †Toxodon
  • †Toxodon bilobidens
  • †Toxodon chapalmalensis
  • †Toxodon gezi – or unidentified comparable form
  • †Toxodon paranensis
  • †Toxodon platensis
  • †Toxodon sp.
• †Toxodontherium
  • †Toxodontherium compressum
  • †Toxodontherium reverendum
  • †Toxodontherium sp.
• †Trachelomonas
  • †Trachelomonas sp.
• †Trachycalyptus – tentative report
• †Trachycalyptus – or unidentified comparable form
  • †Trachycalyptus cingulatus
  • †Trachycalyptus sp.
• †Trachycardium – report made of unidentified related form or using admittedly obsolete nomenclature
• †Trachycardium
  • †Trachycardium puelchum
• †Trachytherus – type locality for genus
• †Trachytherus
  • †Trachytherus mendocensis – type locality for species
  • †Trachytherus sp.
  • †Trachytherus spegazzinianus – type locality for species
  • †Trachytherus spegazzinianus – or unidentified comparable form
  • †Trachytherus spegazzinianus
• †Trachytypotherium
  • †Trachytypotherium sp.
• †Transeptaesporites – or unidentified comparable form
  • †Transeptaesporites spp.
• †Transpithecus – type locality for genus
• †Transpithecus
  • †Transpithecus obtentus – type locality for species
  • †Transpithecus obtentus – tentative report
  • †Transpithecus obtentus
  • †Transpithecus sp.
• †Treleudytes
  • †Treleudytes crassa
• †Tremacebus – type locality for genus
  • †Tremacebus harringtoni – type locality for species
• †Tremacyllus – or unidentified comparable form
• †Tremacyllus
  • †Tremacyllus impressus – or unidentified comparable form
  • †Tremacyllus impressus
  • †Tremacyllus latifrons
  • †Tremacyllus sp.
• †Triatriopollenites
  • †Triatriopollenites bertelsii – type locality for species
  • †Triatriopollenites bertelsii
  • †Triatriopollenites lateflexus – type locality for species
  • †Triatriopollenites lateflexus
  • †Triatriopollenites sp. 1informal
• †Trichilia
  • †Trichilia catignoides – type locality for species
  • †Trichilia moritziformis – type locality for species
• †Trichodes – tentative report
  • †Trichodes stebingeri – type locality for species
• †Trichopeltarion
  • †Trichopeltarion levis – type locality for species
• †Trichosirius – tentative report
  • †Trichosirius patagonica
• †Trichotomosulcites
  • †Trichotomosulcites subgranulatus
• †Tricoelodus – type locality for genus
• †Tricoelodus
  • †Tricoelodus bicuspidatus – type locality for species
  • †Tricoelodus bicuspidatus
• †Tricolpites
  • †Tricolpites bibaculatus
  • †Tricolpites communis – type locality for species
  • †Tricolpites communis
  • †Tricolpites cummunis
  • †Tricolpites gillii
  • †Tricolpites lillie
  • †Tricolpites lumbrerensis
  • †Tricolpites perlongicolpus – or unidentified comparable form
  • †Tricolpites petriellai
  • †Tricolpites reticulata – or unidentified comparable form
  • †Tricolpites reticulata
  • †Tricolpites reticulatus – or unidentified comparable form
  • †Tricolpites reticulatus
  • †Tricolpites sp.
  • †Tricolpites sp. 1informal
  • †Tricolpites sp. 2informal
  • †Tricolpites sp. Ainformal
  • †Tricolpites sp. Binformal
  • †Tricolpites trioblatus
  • †Tricolpites vulgaris
• †Tricolporites
  • †Tricolporites adelaidensis – or unidentified comparable form
  • †Tricolporites sp. 1informal
  • †Tricolporites sp. 3informal
  • †Tricolporites sp. Ainformal
  • †Tricolporites sp. Binformal
  • †Tricolporites sp. Cinformal
  • †Tricolporites valvatus
• †Tricosirius – tentative report
  • †Tricosirius patagonica
• †Trigodon
  • †Trigodon gaudryi
• †Trigodonops – or unidentified comparable form
  • †Trigodonops sp.
• †Trigonia
  • †Trigonia sp.
• †Trigonolophodon
  • †Trigonolophodon modicus – type locality for species
• †Trigonostylops – type locality for genus
• †Trigonostylops – tentative report
• †Trigonostylops
  • †Trigonostylops duplex – type locality for species
  • †Trigonostylops gegenbauri – type locality for species
  • †Trigonostylops sp.
  • †Trigonostylops wortmani – type locality for species
  • †Trigonostylops wortmani – tentative report
  • †Trigonostylops wortmani
• †Trilete
  • †Trilete perisporiuminformal
• †Trilites
  • †Trilites fasolae – type locality for species
  • †Trilites fasolae
  • †Trilites parvalatus
  • †Trilites parvallatus
  • †Trilites sp. 2informal
  • †Trilites tuberculiformis
  • †Trilites volkheimerii
• †Trilobodon – type locality for genus
• †Trilobodon
  • †Trilobodon brancoi – type locality for species
  • †Trilobodon brancoi
• †Trilobosporites
  • †Trilobosporites sp.
• †Trimerostephanos
  • †Trimerostephanos sp.
  • †Trimerostephanos ultimus – type locality for species
• †Triorites
  • †Triorites minor
  • †Triorites orbiculatus – or unidentified comparable form
  • †Triorites orbiculatus
• †Triporopollenites
  • †Triporopollenites ambiguus – or unidentified comparable form
  • †Triporopollenites ambiguus
  • †Triporopollenites minor
  • †Triporopollenites parviannulatus
• †Tripospermum
  • †Tripospermum myrti
• †Trisaccites
  • †Trisaccites microsaccatum
  • †Trisaccites microsaccatus
• †Trithyrodinium
  • †Trithyrodinium evittii
• †Triumfetta
  • †Triumfetta irregulariter-serrata
• †Trochita – report made of unidentified related form or using admittedly obsolete nomenclature
• †Trochita
  • †Trochita pileolus
  • †Trochita pileus
• †Trochus – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Trochus sp. – type locality for species
  • †Trochus sp.
• †Trophon – report made of unidentified related form or using admittedly obsolete nomenclature
• †Trophon
  • †Trophon broggii
  • †Trophon cortatus
  • †Trophon geversianum
  • †Trophon harringtoni
  • †Trophon leanzai
  • †Trophon muriciformis
  • †Trophon pallidus
  • †Trophon patagonicus
  • †Trophon piramidensis
  • †Trophon plicatus
  • †Trophon retrorsum
  • †Trophon santacrucensis
  • †Trophon santacruzensis
  • †Trophon sp.
  • †Trophon varians
  • †Trophon vokesae
• †Tropon
  • †Tropon varians
• †Trypanites
  • †Trypanites sp.
• †Tsamnichoria – type locality for genus
  • †Tsamnichoria cabrerai – type locality for species
• †Tuberculatosporites
  • †Tuberculatosporites parvus – type locality for species
  • †Tuberculatosporites parvus
  • †Tuberculatosporites sp.
• †Tuberculodinium
  • †Tuberculodinium vancampoae
• †Tubulifloridites
  • †Tubulifloridites antipodica
  • †Tubulifloridites pleistocenicus
  • †Tubulifloridites simplis
  • †Tubulifloridites sp.
  • †Tubulifloridites viteauensis
• †Tudicula
  • †Tudicula sp.
• †Tupinambis – type locality for genus
• †Tupinambis
  • †Tupinambis merianae – or unidentified comparable form
  • †Tupinambis sp. – type locality for species
  • †Tupinambis sp.
• †Turbonilla – report made of unidentified related form or using admittedly obsolete nomenclature
• †Turbonilla
  • †Turbonilla cuevensis
  • †Turbonilla eopatagonica
  • †Turbonilla observationis
  • †Turbonilla smithi
  • †Turbonilla sp.
  • †Turbonilla uruguayensis
• †Turris
  • †Turris crassatina
• †Turritella – tentative report
• †Turritella – report made of unidentified related form or using admittedly obsolete nomenclature
• †Turritella
  • †Turritella alzolai
  • †Turritella ambulacrum – or unidentified related form
  • †Turritella ambulacrum – or unidentified comparable form
  • †Turritella ambulacrum
  • †Turritella ameghinoi – or unidentified related form
  • †Turritella ameghinoi
  • †Turritella breantania
  • †Turritella broggii
  • †Turritella cazodoriana
  • †Turritella figueirasi
  • †Turritella flechensis
  • †Turritella hauthali
  • †Turritella heimi
  • †Turritella hodsoni
  • †Turritella malaspina – or unidentified related form
  • †Turritella malaspina
  • †Turritella patagonica
  • †Turritella piramidesia
  • †Turritella pseudohauthalli
  • †Turritella rustica – or unidentified related form
  • †Turritella rustica
  • †Turritella soaresana – or unidentified comparable form
  • †Turritella sp.
• †Typha
  • †Typha sp.
• †Typotheriopsis
  • †Typotheriopsis internum
  • †Typotheriopsis sp.
• †Typotherium
  • †Typotherium cristatum
• †Ulminium
  • †Ulminium atlanticum
  • †Ulminium mucilaginosum
• †Ulmoideipites
  • †Ulmoideipites patagonicus – type locality for species
  • †Ulmoideipites patagonicus
• †Ultrapithecus – type locality for genus
• †Ultrapithecus
  • †Ultrapithecus robustus – type locality for species
  • †Ultrapithecus rutilans – type locality for species
  • †Ultrapithecus rutilans – or unidentified comparable form
  • †Ultrapithecus rutilans
• †Undulatisporites
  • †Undulatisporites sp.
• †Urocerus
  • †Urocerus patagonicus – type locality for species
• †Urosalpinx – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Urosalpinx archipatagonica
  • †Urosalpinx cossmanni
  • †Urosalpinx ortmanni
• †Urotherium – or unidentified comparable form
• †Urotherium
  • †Urotherium interundatum
  • †Urotherium sp.
• †Utaetus – tentative report
• †Utaetus – or unidentified comparable form
• †Utaetus
  • †Utaetus buccatus – type locality for species
  • †Utaetus buccatus – tentative report
  • †Utaetus buccatus
  • †Utaetus deustus – type locality for species
  • †Utaetus deustus
  • †Utaetus laevus – type locality for species
  • †Utaetus lenis – type locality for species
  • †Utaetus lenis
  • †Utaetus sp.
• †Valdesia
  • †Valdesia aequistriata
  • †Valdesia astraensis
  • †Valdesia collaris – or unidentified related form
  • †Valdesia collaris
  • †Valdesia conica
  • †Valdesia cuevensis
  • †Valdesia dalli
  • †Valdesia diametralis
  • †Valdesia golfina
  • †Valdesia schucherti
  • †Valdesia seudocollaris – or unidentified related form
  • †Valdesia seudocollaris
• †Vallehermosomys – type locality for genus
• †Vallehermosomys – tentative report
  • †Vallehermosomys mazzonii – type locality for species
  • †Vallehermosomys merlinae – type locality for species
• †Vassallia
  • †Vassallia sp.
• †Venericardia – tentative report
• †Venericardia
  • †Venericardia abasolensis
  • †Venericardia ameghinorum
  • †Venericardia austroplata
  • †Venericardia camachoi
  • †Venericardia carrerensis – type locality for species
  • †Venericardia feruglioi
  • †Venericardia iheringi
  • †Venericardia leonensis
  • †Venericardia sp.
• †Venus
  • †Venus elongata
  • †Venus meridionalis
  • †Venus munsteri
  • †Venus ovallei – or unidentified related form
• †Verconella – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Verconella iheringi
• †Verrucingulatisporites
  • †Verrucingulatisporites sp.
• †Verrucosisporites – or unidentified comparable form
• †Verrucosisporites
  • †Verrucosisporites kopukuensis
  • †Verrucosisporites sp.
  • †Verrucosisporites sp. 1informal
  • †Verrucosisporites sp. 2informal
• †Verrustephanoporites
  • †Verrustephanoporites simplex
• †Vetelia
  • †Vetelia perforata
  • †Vetelia puncta
  • †Vetelia sp.
• †Victorlemoineia – tentative report
• †Victorlemoineia
  • †Victorlemoineia emarginata – type locality for species
  • †Victorlemoineia labyrinthica – type locality for species
  • †Victorlemoineia longidens – type locality for species
  • †Victorlemoineia longidens
  • †Victorlemoineia sp.
• †Vicugna
  • †Vicugna vicugna
• †Villaresia
  • †Villaresia congonhifolia – type locality for species
• †Vitrenella
  • †Vitrenella pardelensis
• †Voluta
  • †Voluta sp.
• †Volvulella
  • †Volvulella cannada
  • †Volvulella phoinicoides
• †Waincophis – type locality for genus
• †Waincophis
  • †Waincophis australis – type locality for species
  • †Waincophis australis
  • †Waincophis sp.
• †Wainka – type locality for genus
• †Wainka – tentative report
  • †Wainka tshotshe – type locality for species
  • †Wainka tshotshe
• †Wawelia – type locality for genus
  • †Wawelia gerholdi – type locality for species
• †Weinmannioxylon – type locality for genus
• †Weinmannioxylon
  • †Weinmannioxylon multiperforatum – type locality for species
  • †Weinmannioxylon pluriradiatum – type locality for species
• †Willidewu
  • †Willidewu estaparius
  • †Willidewu esteparius
• †Windhausenia
  • †Windhausenia delacroixi
  • †Windhausenia sp.
• †Woodburnodon
  • †Woodburnodon sp.
• †Xanthilites
  • †Xanthilites gerthi
• †Xenocardia – type locality for genus
  • †Xenocardia diversidens – type locality for species
• †Xenodontomys
  • †Xenodontomys ellipticus
  • †Xenodontomys elongatus
• †Xenostephanus – type locality for genus
  • †Xenostephanus chiottii – type locality for species
• †Xesmodon – type locality for genus
• †Xesmodon
  • †Xesmodon langi – type locality for species
  • †Xesmodon prolixus – type locality for species
• †Xiphuroides
  • †Xiphuroides uquiensis
• †Xotodon
  • †Xotodon doellojuradi
  • †Xotodon foricurvatus
  • †Xotodon sp.
• †Xylechimys – type locality for genus
  • †Xylechimys obliquus – type locality for species
• †Xymene
  • †Xymene dautzembergi
  • †Xymene elegans
• †Xymenopsis
  • †Xymenopsis buccinea
  • †Xymenopsis flechensis
  • †Xymenopsis michelii
  • †Xymenopsis muriciformis
  • †Xymenopsis peninsularis
  • †Xymenopsis quenseli
• †Xyophorus
  • †Xyophorus bandesioi – or unidentified related form
• †Yaminuechelys – tentative report
• †Yaminuechelys
  • †Yaminuechelys maior – type locality for species
  • †Yaminuechelys maior – or unidentified comparable form
  • †Yaminuechelys maior
• †Yolida
  • †Yolida patagonia – type locality for species
• †Zaedyus – tentative report
• †Zaedyus
  • †Zaedyus pichiy – or unidentified comparable form
  • †Zaedyus pichiy
  • †Zaedyus sp.
• †Zamia – report made of unidentified related form or using admittedly obsolete nomenclature
• †Zamia
  • †Zamia australis – type locality for species
  • †Zamia tertiaria
• †Zeacuminia
  • †Zeacuminia quemadensis
  • †Zeacuminia santacrucensis
• †Zeadmete
  • †Zeadmete ameghinoi
• †Zelandiella – tentative report
• †Zelandiella
  • †Zelandiella cossmanni – tentative report
  • †Zelandiella golfina
• †Zemacies
  • †Zemacies crassatina – or unidentified comparable form
• †Zeugrhabdotus
  • †Zeugrhabdotus sigmoides
• †Zilchogyra
  • †Zilchogyra sp. Ainformal
  • †Zilchogyra sp. Binformal
• †Ziziphus
  • †Ziziphus sp.
• †Zizyphus
  • †Zizyphus chubutensis – type locality for species
• †Zlivisporis
  • †Zlivisporis sp. 1informal
  • †Zlivisporis sp. 2informal
• †Zonotrichia
  • †Zonotrichia robusta – type locality for species
• †Zygnema – or unidentified related form
• †Zygnema
  • †Zygnema sp.
  • †Zygnema sp. Tipo Ainformal
  • †Zygnema sp. Tipo Binformal
• †Zygochlamys – report made of unidentified related form or using admittedly obsolete nomenclature
• †Zygochlamys
  • †Zygochlamys actinodes
  • †Zygochlamys geminata
  • †Zygochlamys jorgensis
  • †Zygochlamys patagonica
  • †Zygochlamys sp.
• †Zygolestes
  • †Zygolestes paranensis
  • †Zygolestes tatei – type locality for species
  • †Zygolestes tatei

References

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 7 August 2017. {{cite web}}: |author= has generic name (help)

{{Lists of the prehistoric life of }} {{portalbar|Paleontology|Prehistory of North America|Alabama}}