Artigo Produção Nacional Revisado por pares

Cranial bones and atlas of titanosaurs (Dinosauria, Sauropoda) from Late Cretaceous (Bauru Group) of Uberaba, Minas Gerais State, Brazil

2015; Elsevier BV; Volume: 61; Linguagem: Inglês

10.1016/j.jsames.2015.02.009

ISSN

1873-0647

Autores

Agustín G. Martinelli, Thiago da Silva Marinho, Leonardo Filippi, Luiz Carlos Borges Ribeiro, Mara Lúcia da Fonseca Ferraz, Camila Lourencini Cavellani, Vicente de Paula Antunes Teixeira,

Tópico(s)

Evolution and Paleontology Studies

Resumo

Isolated left prefrontal, left squamosal and atlas of titanosaur dinosaurs are described and compared. They come from the Late Cretaceous Serra da Galga Member of the Marília Formation at the Serra do Veadinho region, Peirópolis (Uberaba County, Minas Gerais State, Brazil). Due to the sparse cranial elements of titanosaurs already known from Brazil, these specimens are noticeable to be presented. In addition, the atlas vertebra is described for the first time for Brazilian titanosaurs. The morphology of the cranial bones closely resembles lithostratian titanosaurs, such as Rapetosaurus, rather than basal titanosaurs. The atlas is similar to that of other titanosaurs, suggesting that the anatomy of this element seems to be more conservative than other vertebral elements, in which vertebral laminae play an important rule in titanosaur taxonomy.

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