TITANOSAURS were some of the most common terrestrial vertebrates during the Cretaceous. The Brazilian TITANOSAURS have been well known since the mid-20th century, largely as a result of the efforts of paleontologist Llewellyn Ivor Price, who collected a large amount of remains of these dinosaurs from the Marília Formation, Upper Cretaceous, in the region of Peirópolis, municipality of Uberaba, in the state of Minas Gerais. The abundance and diversity of TITANOSAURS in South America has traditionally been understood as a consequence of the isolation of Gondwana from Laurasia. The Titanosauridae family is the most representative, in terms of number of occurrences and species, among the dinosaurs found in Brazil. It occurs in the states of São Paulo, Minas Gerais, Mato Grosso and Goiás and the largest number of findings are concentrated in the southeastern region of the country.