1921 in paleontology

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Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils.^[1] This includes the study of body fossils, tracks (ichnites), burrows, cast-off parts, fossilised feces (coprolites), palynomorphs and chemical residues. Because humans have encountered fossils for millennia, paleontology has a long history both before and after becoming formalized as a science. This article records significant discoveries and events related to paleontology that occurred or were published in the year 1921.

Plants

Newly named angiosperms

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Images
Porana sikhote-alinensis^[2]	Sp nov	jr synonym	Kryshtofovich	Miocene	Amgu flora	Russia Primorsky Krai	A mallow relative, jr synonym of Florissantia sikhote-alinensis (1992)

Arthropods

Newly named insects

Name	Novelty	Status	Authors	Age	Unit	Location	Notes	Images
Eoformica^[3]^[4]	Gen et sp nov	valid	Cockerell	Eocene	Green River Formation	USA Colorado	An incertae sedis ant genus, type species E. eocenica (a jr synonym to Eoformica pinguis (Scudder, 1877) in 1930)	Eoformica pinguis

Dinosaurs

Newly named dinosaurs

Data courtesy of George Olshevsky's dinosaur genera list.^[5]

Name	Novelty	Status	Authors	Age	Unit	Location	Notes	Images
Sarcosaurus^[6]	Gen et sp nov	Valid	Andrews	Hettangian-Sinemurian	Blue Lias	England	A ceratosaurid	Sarcosaurus

Synapsids

Non-mammalian

Name	Status	Authors	Age	Unit	Location	Notes
Anteosaurus	Valid	Watson	Middle Permian	Tapinocephalus Assemblage Zone	South Africa	A member of Dinocephalia.
Emyduranus	Junior synonym	Broom	Late Permian	Cistecephalus Assemblage Zone	South Africa	A junior synonym of Pristerodon.
Leptotrachelus	Junior synonym	Broom	Middle Permian	Tapinocephalus Assemblage Zone	South Africa	Junior synonym of Gorgonops^[7]
Palemydops	Valid	Broom	Late Permian	Cistecephalus Assemblage Zone	South Africa	A dicynodont.

References

^ Gini-Newman, Garfield; Graham, Elizabeth (2001). Echoes from the past: world history to the 16th century. Toronto: McGraw-Hill Ryerson Ltd. ISBN 9780070887398. OCLC 46769716.
^ Manchester, S.R. (1992). "Flowers, fruits and pollen of Florissantia, an extinct malvalean genus from the Eocene and Oligocene of western North America". American Journal of Botany. 79 (9): 996–1008. doi:10.2307/2444909. JSTOR 2444909.
^ Cockerell, T. D. A. (1921). "Some Eocene insects from Colorado and Wyoming". Proceedings of the United States National Museum. 59: 29–39.
^ Carpenter, F. M. (1930). "The fossil ants of North America" (PDF). Bulletin of the Museum of Comparative Zoology. 70: 1–66.
^ Olshevsky, George. "Dinogeorge's Dinosaur Genera List". Archived from the original on 2011-07-15. Retrieved 2008-08-07.
^ Andrews, C.W. 1921. On some remains of a theropodous dinosaur from the lower Lias of Barrow-on-Soar. Arm. Mag. Nat. Hist. (ser. 9) 8:pp. 570-576.
^ Carroll, R. L. Vertebrate Paleontology and Evolution. W. H Freeman Company, 1988.

[1] Gini-Newman, Garfield; Graham, Elizabeth (2001). Echoes from the past: world history to the 16th century. Toronto: McGraw-Hill Ryerson Ltd. ISBN 9780070887398. OCLC 46769716.

[Manchester1992-2] Manchester, S.R. (1992). "Flowers, fruits and pollen of Florissantia, an extinct malvalean genus from the Eocene and Oligocene of western North America". American Journal of Botany. 79 (9): 996–1008. doi:10.2307/2444909. JSTOR 2444909.

[Cockerell1921-3] Cockerell, T. D. A. (1921). "Some Eocene insects from Colorado and Wyoming". Proceedings of the United States National Museum. 59: 29–39.

[Carpenter1930-4] Carpenter, F. M. (1930). "The fossil ants of North America" (PDF). Bulletin of the Museum of Comparative Zoology. 70: 1–66.

[ddinogeorge-5] Olshevsky, George. "Dinogeorge's Dinosaur Genera List". Archived from the original on 2011-07-15. Retrieved 2008-08-07.

[6] Andrews, C.W. 1921. On some remains of a theropodous dinosaur from the lower Lias of Barrow-on-Soar. Arm. Mag. Nat. Hist. (ser. 9) 8:pp. 570-576.

[Carroll-7] Carroll, R. L. Vertebrate Paleontology and Evolution. W. H Freeman Company, 1988.

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