Bahia Group Explained

The Bahia Group, also known as Bahia Series, is an Aptian geologic group of the Recôncavo Basin in Bahia, Brazil. Dinosaur remains are among the fossils that have been recovered from unit, including those of the ornithopod Tietasaura from the Marfim Formation.^{[1] [2]} The conglomerates were deposited in an estuarine environment.^[3]

Fossil content

Theropods

Theropods of the Bahia Group
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Carcharodontosauria Indet	Indeterminate
Spinosauridae Indet.	Indeterminate
Tyrannosauroidea? Indet.	Indeterminate

Sauropods

Sauropods of the Bahia Group
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Diplodocidae Indet.	Indeterminate
Lithostrotia Indet.	Indeterminate

Ornithopods

Ornithopods of the Bahia Group
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Iguanodontia Indet.	Indeterminate
Tietasaura	T. derbyiana				A elasmarian ornithopod

Crocodyliformes

Crocodyliformes of the Bahia Group
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Sarcosuchus[4]	S. hartti				A pholidosaurid crocodyliform
"Thoracosaurus"	"T. bahiensis"				A gavialoid crocodilian

Fish

Fishes of the Bahia Group
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Acrodus	A. nitidus				A acrodontid hybodont
Lepidotes	L. spp.				A lepidotid fish
Mawsonia	M. gigas				A mawsoniid coelacanth

See also

• List of dinosaur-bearing stratigraphic units

References

Bibliography

Further reading

• J. Mawson and A. S. Woodward. 1907. On the Cretaceous formation of Bahia (Brazil), and on vertebrate fossils collected therein. Quarterly Journal of the Geological Society of London 63:128-139

Notes and References

1. A reassessment of the historical fossil findings from Bahia State (Northeast Brazil) reveals a diversified dinosaur fauna in the Lower Cretaceous of South America . Bandeira . Kamila L. N. . Navarro . Bruno A. . Pêgas . Rodrigo V. . Brilhante . Natan S. . Brum . Arthur S. . de Souza . Lucy G. . de Silva . Rafael C. . Gallo . Valéria . Historical Biology . 2024 . 1–42 . 10.1080/08912963.2024.2318406. free .
2. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
3. https://paleobiodb.org/classic/displayCollResults?collection_no=94537 Pedra Furada Bay
4. Souza. Rafael G. Figueiredo. Rodrigo G. Azevedo. Sérgio A K. Riff. Douglas. Kellner. Alexander W A. August 12, 2019. Systematic revision of Sarcosuchus hartti (Crocodyliformes) from the Recôncavo Basin (Early Cretaceous) of Bahia, north-eastern Brazil. Zoological Journal of the Linnean Society. en. zlz057. 10.1093/zoolinnean/zlz057. 0024-4082.