20030815

Kellner, A.W.A. and Campos D.A. (2002). On a theropod dinosaur (Abelisauria) from the continental Cretaceous of Brazil. Arquivos do Museu Nacional Rio de Janeiro. 60 (3): 163-170.

ABSTRACT: A new theropod (Pycnonemosaurus nevesi gen.nov., sp.nov.) is described, based on five incomplete teeth, parts of seven caudal vertebrae, a right pubis (lacking the proximal part), a right tibia, and the distal articulation of the right fibula. The specimen (DGM 859-R) was found in a red conglomeratic sandstone at the locality Fazenda Roncador (Mato Grosso), which is referred to the Upper Cretaceous Bauru Group.

Pycnonemosaurus nevesi is classified in the Abelisauria because of the expanded distal ends of the transverse processes in some (but not all) caudal vertebrae. It differs from all other members of this clade by its small pubic foot and hatchet-shaped cnemial crest of the tibia. This new taxon confirms the presence of abelisaurs in the continental Upper Cretaceous strata of Brazil.

• < Prev
• Next >