Titanosauria of the Bauru Group: a summary of records and their importance for understanding the diversity of the clade in Brazil

Abstract

ABSTRACT. The present study provides a synthesis of the diversity and geographical distribution of Titanosauria (Dinosauria: Sauropoda) from Upper Cretaceous rocks of the Bauru Group in Brazil. There are currently ten valid species of titanosaurs described for the Bauru Group, some of which exhibit similarities to species found in Argentina. Among these species is the well-known clade Aeolosaurini, which is considered as endemic to South America. Members belonging to the Aeolosaurini clade remains have so far been found only in Argentina and Brazil. This faunal similarity helps in the interpretation of the paleogeographic distribution of these organisms, which reflects intense faunal interchange between these regions, thereby indicating a chrono-correlated geological age.