First titanosaur (Saurischia, Sauropoda) axial remains from the Uberaba Formation, Upper Cretaceous, Bauru Group, Brazil

Autor(es)

Santucci, Rodrigo Miloni ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Dept Nacl Prod Mineral, Brasilia, DF - Brazil

^[2] Univ Brasilia, Dept Geol Geral & Aplicada, Brasilia, DF - Brazil

• Tipo de documento: Artigo Científico
• Fonte: HISTORICAL BIOLOGY; v. 20, n. 3, p. 165-173, 2008.
• Citações Web of Science: 7

Resumo

The Adamantina and Marilia formations are considered to be the richest vertebrate-bearing units in the Bauru Group, Upper Cretaceous, Brazil. In contrast, the fossil content from the Uberaba Formation, which only outcrops in Minas Gerais State, is scarce and poorly understood. In this essay the first taxonomically informative titanosaur remains unearthed from this unit are reported. They comprise anterior caudal vertebrae from two different individuals corresponding to a probably basal titanosaur (CPP-360) and a derived titanosaur (CPP-217). Although these remains can be clearly distinguished from other titanosaurs on the basis of their unique association of characteristics like the presence of mildly procoelous centra, lateral pits in the anterior caudal vertebrae, and prezygapophyses with a dorsal protuberance in anterior caudals in CPP-360 and the presence of strongly developed prespinal, spinopostzygapophyseal and centropostzygapophyseal laminae in CPP-217, more complete materials are needed to propose them new names. (AU)

• Processo FAPESP: 02/00574-2 - Origem, evolução e distribuição paleogeográfica dos Titanosauria (Saurischia, Sauropoda)
• Beneficiário: Rodrigo Miloni Santucci
• Modalidade de apoio: Bolsas no Brasil - Doutorado