Bahia Group
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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 |
| Approximate paleocoordinates | 12.7°S 5.7°W |
| Region | Bahia |
| Country | Brazil |
| Extent | Recôncavo Basin |
| Type section | |
| Named for | Bahia |
  Bahia Group (Brazil) | |
Fossil content
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Ornithischians
| Ornithischians of the Bahia Group | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Iguanodontia Indet. | Indeterminate | Bahia | Valanginian to Hauterivian | |||
| Tietasaura | T. derbyiana | Bahia | Valanginian to Hauterivian | Left Femur | A elasmarian ornithopod |  |
Sauropods
| Sauropods of the Bahia Group | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Diplodocidae Indet. | Indeterminate | Bahia | Valanginian to Hauterivian | |||
| Lithostrotia Indet. | Indeterminate | Bahia | Hauterivian to Barremian | |||
Theropods
| Theropods of the Bahia Group | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Carcharodontosauria Indet. | Indeterminate | Bahia | Valanginian to Hauterivian | Vertebrae | A giant species, possible the largest Carcharodontosaurian know. | |
| Spinosauridae Indet. | Indeterminate | Bahia | Valanginian to Hauterivian | |||
| Tyrannosauroidea? Indet. | Indeterminate | Bahia | Hauterivian to Barremian | |||
Pterosaurs
| Pterosaurs of the Bahia Group | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Anhangueridae Indet. | Indeterminate | Bahia | Valanginian to Hauterivian | |||
Crocodylomorphs
| Crocodylomorphs of the Bahia Group | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Sarcosuchus[4] | S. hartti | Bahia | Valanginian to Barremian | A pholidosaurid crocodyliform | ||
| "Thoracosaurus" | "T. bahiensis" | Bahia | Valanginian to Hauterivian | A gavialoid crocodilian | ||
Turtles
| Turtles of the Bahia Group | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Testudines Indet. | Indeterminate | Bahia | Valanginian to Hauterivian | |||
Fish
| Fishes of the Bahia Group | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Acrodus | A. nitidus | Bahia | Valanginian to Hauterivian | A acrodontid hybodont | ||
| "Belonostomus" | "B". carinatus | Bahia | Hauterivian to Barremian | A aspidorhynchid fish | ||
| Calamopleurus | C. mawsoni | Bahia | Hauterivian to Barremian | A vidalamiine amiid | ||
| Ellimmichthys[5] | E. longicostatum | Bahia | Berriasian to Valanginian | A ellimmichthyiform fish | ||
| E. spinosus | ||||||
| Lepidotes | L. spp. | Bahia | Valanginian to Barremian | A lepidotid fish | ||
| Mawsonia | M. gigas | Bahia | Valanginian to Barremian | A mawsoniid coelacanth | ||
| Scrombroclupeoides | S. scutata | Bahia | Hauterivian to Barremian | A clupeomorph fish | ||
| Scutatuspinosus | S. itapagipensis | Bahia | Hauterivian to Barremian | A ellimmichthyiform fish | ||