On a new peirosaurid crocodyliform from the Upper Cretaceous, Bauru Group, southeastern Brazil

Anais da Academia Brasileira de Ciências

Diogenes A. Campos²  Gustavo R. Oliveira¹  Rodrigo G. Figueiredo¹  Douglas Riff¹  Sergio A.k. Azevedo¹  Luciana B. Carvalho¹  Alexander W.a. Kellner¹ 

[1] ,Departamento Nacional de Produção Mineral Museu de Ciências da Terra Rio de Janeiro RJ ,Brasil

关键词: Pepesuchus;    Peirosauridae;    Cretaceous;    Bauru Group;    Brazil;    Pepesuchus;    Peirosauridae;    Cretáceo;    Grupo Bauru;    Brasil;   

DOI  :  10.1590/S0001-37652011000100020

来源: SciELO

【 摘 要 】

A new crocodyliform from the Upper Cretaceous (Campanian-Maastrichtian) Presidente Prudente Formation of the Bauru Group is described based on two almost complete skulls and mandibles. The material comes from the "Tartaruguito" site, situated at an old railroad between the cities of Pirapozinho and Presidente Prudente, state of São Paulo, Brazil. The new species, Pepesuchus deiseae gen. et sp. nov., is classified in the clade Peirosauridae on the basis of three synapomorphies: the presence of five premaxillary teeth, the anterior two premaxillary alveoli nearly confluent, and the oval cross-section of the jugal along the lower temporal bar. The new taxon increases the outstanding crocodyliform diversity of the Bauru Group, particularly of the Peirosauridae, which might turn out to be one of the most representative clades of gondwanan mesoeucrocodylians.

【 授权许可】

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