Feliz Deserto Formation

Feliz Deserto Formation
Feliz Deserto Formation
Stratigraphic range: Berriasian-Valanginian; ~145–132 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Location
Region	Sergipe-Alagoas Basin of Northeastern Brazil
Country	Brazil
Type section
Named for	Feliz 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

The formation provides vertebrate fossils of Lepidotes fish and teeth of crocodylomorphs and theropods, including what may be the oldest members of the Spinosauridae reported in South America.^[1]^[2]

Fossil content

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

Theropods

Theropods of the Feliz Deserto Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Baryonychinae indet.^[1]	Indeterminate			A tooth	A spinosaurid theropod
Spinosaurinae indet.^[3]	Indeterminate			Eight teeth	A spinosaurid theropod
Theropoda indet.^[3]	Indeterminate			A toe bone

Crocodylomorphs

Crocodylomorphs of the Feliz Deserto Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Crocodyliformes indet.^[3]	Indeterminate			Six isolated teeth
Mesoeucrocodylia indet.^[3]	Indeterminate			An isolated osteoderm
Neosuchia Indet.^[3]	Indeterminate			Eleven isolated teeth

Fish

Fishes of the Feliz Deserto Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Lepidotes^[3]	L. sp.				A lepidotid fish

References

^ ^a ^b ^c 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.
^ 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.
^ ^a ^b ^c ^d ^e ^f 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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[:0-1] 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.

[LacerdaFelizDeserto-3] ^ ^a ^b ^c ^d ^e ^f 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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