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Feliz Deserto Formation

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Feliz Deserto Formation
Stratigraphic range: Berriasian-Valanginian
~145–132 Ma
TypeGeological formation
Location
RegionSergipe-Alagoas Basin of Northeastern Brazil
Country Brazil
Type section
Named forFeliz Deserto

The Feliz Deserto Formation is a geologic formation of the Early Cretaceous age (Berriasian to Valanginian) in northeastern Brazil's Sergipe-Alagoas Basin. The formation belongs to the rift phase, in which a great lake formed.[1]

Background

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The formation provided fossils of bivalve and gastropod molluscs, vertebrate remains of Lepidotes fish and teeth of crocodylomorphs and spinosaurids, the oldest of the family reported in South America.[1][2]

Fossil content

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Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Dinosaurs

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Theropods

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Theropods of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images
Baryonychinae Indet.[3] Indeterminate Teeth A spinosaurid theropod.
Carcharodontosauria Indet. Indeterminate
Spinosauridae Indet.[4] Indeterminate Teeth A spinosaurid theropod.
Spinosaurinae Indet.[4] Indeterminate Teeth A spinosaurid theropod.
Theropoda Indet.[4] Indeterminate Preungual Pedal Phalnax

Sauropods

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Saoropods of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images
Dicraeosauridae Indet. Indeterminate
Somphospondyli Indet. Indeterminate

Ornithopods

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Ornithopods of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images
Iguanodontia Indet. Indeterminate
Stegosauridae Indet. Indeterminate

Pterosaurs

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Pterosaurs of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images
Anhangueridae Indet Indeterminate

Crocodylomorphs

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Crocodylomorphs of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images
Neosuchia Indet.[4] Indeterminate Osteoderm and 18 Isolated Teeth

Turtles

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Turtles of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images

Mammals

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Mammals of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images

Fish

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Cartilaginous fish

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Cartilaginous fish of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images

Lobbed finned fish

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Lobbed-finned fish of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images

Ray-finned fish

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Ray-finned fish of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images
Lepidotes Indeterminate A lepidotid fish.

Crustaceans

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Crustaceans of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images

Molluscs

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Bivalves

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Bivalves of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images

Gastropods

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Gastropods of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images

References

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  1. ^ a b ARAGÃO, PAULO (2021). "DENTES FÓSSEIS DE ARCOSSAUROS DA FORMAÇÃO FELIZ DESERTO (CRETÁCEO INFERIOR), BACIA DE SERGIPE-ALAGOAS". Departamento de Biologia, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Sergipe.
  2. ^ Sales, Marcos A. F.; Liparini, Alexandre; De Andrade, Marco (2017). "The oldest South American occurrence of Spinosauridae (Dinosauria, Theropoda)". Journal of South American Earth Sciences. 74: 83–88. Bibcode:2017JSAES..74...83S. doi:10.1016/j.jsames.2016.10.005 – via Elsevier Science Direct.
  3. ^ Lacerda, M. B. S.; Aragão, P. R. L.; Vieira, F. S.; Sales, M. A. F.; Liparini, A. (2023). "On the first Baryonychinae (Theropoda, Spinosauridae) teeth from South America". Zootaxa. 5264 (4): 526–544. doi:10.11646/zootaxa.5264.4.4. PMID 37518033. S2CID 258210733.
  4. ^ a b c d Lacerda, M.B.S.; de Andrade, M.B.; Sales, M.A.F.; Aragão, P.R.L.; Vieira, F.S.; Bittencourt, J.S.; Liparini, A. (2023). "The vertebrate fossil record from the Feliz Deserto Formation (Lower Cretaceous), Sergipe, NE Brazil: paleoecological, taphonomic, and paleobiogeographic implications". Cretaceous Research. 147: 105463. Bibcode:2023CrRes.14705463L. doi:10.1016/j.cretres.2022.105463. ISSN 0195-6671. S2CID 255635144.


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