Bahia Group

The Bahia Group, also known as Bahia Series, is an Early Cretaceous geologic group of the Recôncavo Basin in Bahia, Brazil dating back to the Valanginian and Hauterivian. 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]

Bahia Group
Stratigraphic range: Valanginian-Hauterivian
Type	Group
Sub-units	Marfim Formation
Lithology
Primary	Conglomerate
Location
Coordinates	12.9°S 38.5°W / -12.9; -38.5
Approximate paleocoordinates	12.7°S 5.7°W / -12.7; -5.7
Region	Bahia
Country	Brazil
Extent	Recôncavo Basin
Type section
Named for	Bahia
Bahia Group (Brazil)

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.

Ornithopods

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

Sauropods

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

Theropods

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

Pterosaurs

Pterosaurs of the Bahia Group
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Anhangueridae Indet.	Indeterminate

Crocodylomorphs

Crocodylomorphs 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

Turtles

Turtles of the Bahia Group
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Testudines Indet.	Indeterminate

Fish

Fishes of the Bahia Group
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Acrodus	A. nitidus				A acrodontid hybodont
"Belonostomus"	"B". carinatus				A aspidorhynchid fish
Calamopleurus	C. mawsoni				A amiid fish
Ellimmichthys	E. longicostatum				A ellimmichthyiform fish
	E. spinosus
Lepidotes	L. spp.				A lepidotid fish
Mawsonia	M. gigas				A mawsoniid coelacanth
Scrombroclupeoides	S. scutata				A clupeomorph fish
Scutatuspinosus	S. itapagipensis				A ellimmichthyiform fish

Molluscs

Bivalves

Bivalves of the Bahia Group
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Anhapoa[5]	A. munizi				A iridinid bivalve
Duplexium[5]	D. jatobensis				A iridinid bivalve

See also

• List of dinosaur-bearing stratigraphic units