bcreisler@gmail.com
A new paper:
(I don't have access to the full text to confirm if a new taxon is named. As far as I can tell from online queries, it's an indeterminate specimen, but possibly a new taxon. Family Stahleckeriidae Cox, 1965. Genus et species indet. (? nov.))
An unusual dicynodont specimen from the historical collection of von Huene and Stahlecker (1928/1929) is described from the Middle Triassic Dinodontosaurus Assemblage Zone of the Santa Maria Formation of ChiniquÃ, Rio Grande do Sul, Brazil. Hitherto only two dicynodont species, the stahleckeriid Stahleckeria potens and the more basal kannemeyeriiform Dinodontosaurus turpior, were recorded from this faunal assemblage. The specimen consists of an isolated partial brain case and intertemporal skull roof, a left nasal and a preparietal. In contrast to Stahleckeria, a preparietal is present, the intertemporal skull roof is extremely narrow and the postorbitals are short posteriorly. In contrast to Dinodontosaurus, the interparietal is narrow and intrudes far onto the intertemporal skull roof, the tabular is separately ossified and the entire intertemporal region is extremely narrow. The form represents a rare, hitherto unrecorded component of the fauna. Comparison to other known Middle Triassic dicynodonts shows that it cannot be referred to any known taxon, showing a unique combination of characters. Close resemblance is found to some other South American taxa, particularly to Jachaleria candelariensis from the Riograndia Assemblage Zone of the Caturrita Formation.