Dinosaurs remains from western Sمo Paulo state, Brazil (Bauru Basin, Adamantina Formation, Upper Cretaceous)

In this contribution is presented the preliminary results of a paleontological expedition to five Upper Cretaceous fossil sites in the western part of the state of Sمo Paulo, Brazil. Although the material is fragmented, the recovered fossils constitute an important record of the theropod dinosaur; some isolated teeth are the first record of Carcharodontosauridae in the Upper Cretaceous period in Brazil. The authors group the teeth of the theropod into five morphological groups on the basis of the general morphology of each toothʹs cross-section and the presence of wrinkles on the crown. Spinosaurid and abelisaurid are also represented in this assembly, though other morph groups remain undetermined. One tooth in particular and a caudal vertebra indicate the presence of sauropods from the family Titanosauridae family.