摘要：A new titanosaurid dinosaur from the Late Cretaceous continental deposits of the Bauru Group
is described. Trigonosaurus pricei n.gen., n.sp., is based on two specimens, both collected at the Caieira
Quarry near Peirópolis, Minas Gerais. The holotype consists of the five most posterior cervical vertebrae, 10
dorsals, six sacrals and the left ilium (MCT 1488-R). The second specimen (paratype) consists of 10 caudal
vertebrae that according to a quarry map, were found isolated but show a similar morphology and compatible
size suggesting that they belonged to one individual (MCT 1719-R). Trigonosaurus pricei is diagnosed by a
combination of characters such as elongated cervicals and middorsals, dorsal vertebrae 9 and 10 with
incipient postzygodiapophyseal lamina and transverse processes well developed throughout the sequence
formed by anterior and medial caudals. The occurrence of this new taxon indicates a higher diversity of
titanosaurids in the Brazil during the Cretaceous period.
Loading...
