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Monolophosaurus (was Re: Gasosaurus (was Re: MJ coelurosaurians))
At 06:59 AM 2/11/99 -0800, Larry Dunn wrote:
>--"Thomas R. Holtz, Jr." <email@example.com> wrote:
>> features are also found in basal carnosaurs (_Monolophosaurus_,
>> _Yangchaunosaurus_, etc.),
>Monolophosaurus is a *basal* carnosaur? Zhao and Currie (1993) opine
>that M. is more advanced than Sinraptor and Yangchuanosaurus, which
>would put if pretty far from, say Cryolophosaurus, wouldn't it?
>Has there been a reappraisal of the traits of M.?
Yes. A number of carnosaur-related papers are coming out in the near
future, and several of them place _Mono._ as a branch or two further away
from _Allo._ than are the sinraptorids. Could, of course, change with new
data. _Mono._ does certainly seem to be a more primitive beastie than
_Allosaurus_ (certainly) and the sinraptorids (probably), & I wouldn't be
terribly surprised to find it outside the allosaur-coelurosaur clade at some
Have yet to get a good long look at _Cryolophosaurus_ (soon, hopefully) to
try and find out where it fits.
Thomas R. Holtz, Jr.
Vertebrate Paleontologist Webpage: http://www.geol.umd.edu
Dept. of Geology Email:firstname.lastname@example.org
University of Maryland Phone:301-405-4084
College Park, MD 20742 Fax: 301-314-9661