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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
Abelisauridae Indet. Indeterminate
Baryonychinae Indet.[3] Indeterminate Teeth A spinosaurid theropod.
Caenagnathidae Indet. Indeterminate Closely related to Gigantoraptor erlianensis.
Carcharodontosauridae Indet. Indeterminate
Eudromaeosauria Indet. Indeterminate
Ornithomimosauria Indet Indeterminate
Spinosauridae Indet.[4] Indeterminate Teeth
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
Brachiosauridae Indet. Indeterminate
Dicraeosauridae Indet. Indeterminate Closely related to Amargasaurus cazaui
Diplodocidae Indet. Indeterminate
Somphospondyli Indet. Indeterminate
Titanosauriformes Indet. Indeterminate
Turiasauria Indet. Indeterminate

Ornithopods

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Ornithopods of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images
Elasmaria Indet. Indeterminate
Hypsilophodontidae Indet. Indeterminate
Iguanodontia Indet. Indeterminate
Polacanthinae Indet. Indeterminate
Rhabdodontomorpha 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
Volaticotherini Indet. Indeterminate

Amphibians

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Amphibian of the Feliz Deserto Formation
Genus Species Location Stratigraphic position Material Notes Images
Anura Indet. Indeterminate
Chigutisauridae Indet. Indeterminate a giant chigutisaurid temnospondyl.

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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