| Full text | |
| Author(s): |
Bandeira, Kamila L. N.
;
Navarro, Bruno A.
;
Pegas, Rodrigo V.
;
Brilhante, Natan S.
;
Brum, Arthur S.
;
de Souza, Lucy G.
;
da Silva, Rafael C.
;
Gallo, Valeria
Total Authors: 8
|
| Document type: | Journal article |
| Source: | HISTORICAL BIOLOGY; v. N/A, p. 42-pg., 2024-03-30. |
| Abstract | |
Supposed dinosaur remains were collected between 1859 and 1906 in the Lower Cretaceous Reconcavo Basin (Northeast Brazil). Since these materials remained undescribed, and most were considered lost. Recently, some of these historical specimens were rediscovered in the Natural History Museum of London, providing an opportunity to revisit them after 160 years. The specimens come from five different sites, corresponding to the Massacara (Berriasian-Barremian) and Ilhas (Valanginian-Barremian) groups. Identified bones comprise mainly isolated vertebral centra from ornithopods, sauropods, and theropods. Appendicular remains include a theropod pedal phalanx, humerus, and distal half of a left femur with elasmarian affinities. Despite their fragmentary nature, these specimens represent the earliest dinosaur bones discovered in South America, enhancing our understanding of the Cretaceous dinosaur faunas in Northeast Brazil. The dinosaur assemblage in the Reconcavo Basin resembles coeval units in Northeast Brazil, such as the Rio do Peixe Basin, where ornithopods coexist with sauropods and theropods. This study confirms the presence of ornithischian dinosaurs in Brazil based on osteological evidence, expanding their biogeographic and temporal range before the continental rifting between South America and Africa. Additionally, these findings reinforce the fossiliferous potential of Cretaceous deposits in Bahia State, which have been underexplored since their initial discoveries. (AU) | |
| FAPESP's process: | 19/10231-6 - Stance biomechanis of the wing during flight in Anhanguera piscator and Tupuxuara leonardii (Pterosauria: Pterodactyloidea) and considerations on the evolution of flight within the group |
| Grantee: | Rodrigo Vargas Pêgas |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 23/11098-3 - Cladogenesis and early diversification of Titanosauria (Dinosauria, Sauropoda): Comparative osteology, phylogeny, and paleobiogeography. |
| Grantee: | Bruno Albert Navarro |
| Support Opportunities: | Scholarships in Brazil - Doctorate |