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Re: Questions , Questions ,Questions
Truett Garner wrote:
>I've got a few questions that's been bugging me .
compelling is the evidence for a monophyletic Ceratosauria ?
Not very compelling I think. I'm studying ceratosaur phylogeny, and I don't
think my final analysis will prove Ceratosauria monophyletic (but, who knows).
However, as I am a beginner in the subjet, Tom Holtz will explain this much
better than me.
>2. Is there any evidence to indicate that Ceratosaurus may indeed
Maybe, but I don't think so. Ceratosaur phylogeny is very difficult to
resolve, because of fragmentary nature of remains, and much homoplasy. Without a
major review of theropod phylogeny (I think Tom is on it), let's say that
Ceratosaurus might be a basal abelisaur or a basal carnosaur (don't ask
me why for now).
>3. Is there any evidence of a ' subnarial gap ' in any other
>groups outside of Coelophysoidea and Spinosauridae ?
If there is, I'm not aware of it.
>Any help would be greatly appreciated !
Mmm. This area of theropod phylogeny is so confusing that nobody would be
of great help without a major review, I think.
>Thanks in advance ,