Portal de Periódicos da CAPES

Artigo Produção Nacional Revisado por pares

BIBTEX RIS

The braincase of Prestosuchus chiniquensis (Archosauria: Suchia)

2013; Geological Society of London; Volume: 379; Issue: 1 Linguagem: Inglês

10.1144/sp379.10

2041-4927

Bianca Martins Mastrantonio, César Leandro Schultz, Julia B. Desojo, Juliana Bittencourt Garcia,

Amphibian and Reptile Biology

Abstract The osteology of an almost complete braincase of the rauisuchian archosaur Prestosuchus chiniquensis from the Middle Triassic of Brazil is described for first time, based on two specimens (UFRGS-PV-0629-T and UFRGS-PV-0156-T) . A comparative description with other taxa of rauisuchians is presented that forms the basis of a phylogenetic analysis. To perform the phylogenetic analysis, we describe and discuss each character codification for a modified version of the recent matrices of Gower (2002) , Gower & Nesbitt (2006) and Brusatte et al. (2010) . The analysis resulted in two most parsimonious trees that differ from the topologies recovered by Gower (2002) in a few aspects within Rauisuchia, and Prestosuchus chiniquensis was unequivocally depicted as deeply nested within Pseudosuchia, as the sister taxon of Batrachotomus kuperferzellensis in both topologies, supported by a single synapomorphy: the reduced to small fissure of the post-temporal fenestra between parietal, supraoccipital and exoccipital-opisthotic.