[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
RE: Rv: noasaurus reconstruction
Sebastian Apesteguia wrote:
Velocisaurids in South America and Madagascar
F. AGNOLÍN, F. NOVAS and S. APESTEGUÍA
Velocisaurus and Masiakasaurus share slender metatarsals II and IV, and
very gracile and non-
raptorial pedal phalanges with a long dorsal process. These features, which
distinguish them from >other abelisauroids, prompts the inclusion of the
latter within Velocisauridae.
Unless... these features are primitive for Abelisauroidea? Or convergent
between _Velocisaurus_ and _Masiakasaurus_? How does _Elaphrosaurus_ fit
(Playing Devil's Advocate here.)
_Velocisaurus_ and _Masiakasaurus_ do share slender metatarsals II and IV.
_Masiakasaurus_ has metatarsal II narrower than both III and IV, as does
_Noasaurus_ and (I think) _Elaphrosaurus_.
_Velocisaurus_ has metatarsals II and IV narrower than III. The latter
condition is fairly typical of theropods, although this is exaggerated in
_Velocisaurus_ where the shafts of metatarsals II and IV are extremely thin.
Add a Yahoo! contact to Windows Live Messenger for a chance to win a free