[D] Trigonosaurus pricei [sG] [T]
Campos, Kellner, Bertini & Santucci, 2005
Saurischia Sauropodomorpha Sauropoda Titanosauria
Bauru Basin, Bauru Group, Caieira Quarry near Peirópolis, Minas Gerais, Brazil
Genus - Typespecies
Trigonosaurus pricei is based on two specimens. 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.