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New sauropodomorph from Triassic of Brazil



From: Ben Creisler
bh480@scn.org


Apologies for not having the name of the new taxon--I don't have access to
the full article at the moment and the non-subscriber online info does not
seem to reveal the name of the new dinosaur. Maybe another DML member can
get the full name.
Here's what I can provide so far:


Sergio F. Cabreira, Cesar L. Schultz, Jonathas S. Bittencourt, Marina B.
Soares, Daniel C. Fortier, Lúcio R. Silva and Max C. Langer (2011)
New stem-sauropodomorph (Dinosauria, Saurischia) from the Triassic of
Brazil. 
Naturwissenschaften (advance online publication)
DOI: 10.1007/s00114-011-0858-0
http://www.springerlink.com/content/qu44p67746t71w38/

Post-Triassic theropod, sauropodomorph, and ornithischian dinosaurs are
readily recognized based on the set of traits that typically characterize
each of these groups. On the contrary, most of the early members of those
lineages lack such specializations, but share a range of generalized traits
also seen in more basal dinosauromorphs. Here, we report on a new Late
Triassic dinosaur from the Santa Maria Formation of Rio Grande do Sul,
southern Brazil. The specimen comprises the disarticulated partial skeleton
of a single individual, including most of the skull bones. Based on four
phylogenetic analyses, the new dinosaur fits consistently on the
sauropodomorph stem, but lacks several typical features of sauropodomorphs,
showing dinosaur plesiomorphies together with some neotheropod traits. This
is not an exception among basal dinosaurs, the early radiation of which is
characterized by a mosaic pattern of character acquisition, resulting in
the uncertain phylogenetic placement of various early members of the group. 




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