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Re: Size of Theropods
On Mon, 22 Jan 1996, Peter Mark wrote:
> Just a follow up to Scott Horton's post - it would seem that in the past
> there was at least a tendency, perhaps not scientifically rigorous, to lump
> large theropods into carnosauria and small ones into coelurosauria. Now that
> coelurosaurs have got pretty big with the inclusion of tyrannosaurs, just
> what is an acceptable definition of the differences between the two?
> Graeme Worth
Carnosauria includes Allosaurus and its closest relatives, the families
Sinraptoridae, Allosauridae, Carcharodontosauridae, and possibly the more
primitive Monolophosauridae. As you can see, its membership has been
severely limited, and it is now a monophyletic clade.
Glad to help.
Pacific Lutheran University
Tacoma, WA 98447