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Re: Senter et al. 2004 impressions



Has more _Deinocheirus_ material been identified?  I thought it was just a pair 
of arms.

John Hunt
----- Original Message ----- 
From: "T. Michael Keesey" <mightyodinn@yahoo.com>
To: "Mailing List - Dinosaur" <dinosaur@usc.edu>
Sent: Tuesday, August 31, 2004 6:49 PM
Subject: Re: Senter et al. 2004 impressions


> --- Tim Williams <twilliams_alpha@hotmail.com> wrote:
> 
> > Mickey Mortimer wrote:
> > 
> > >Yup.  Arctometatarsalia is (Segno(Troodo(Deinocheir(Alvarez,Ornithom)))) in
> > >the dissertation [snip] alvarezsaurids are arctometarsalians in Senter's 
> > >phylogeny.
> > 
> > Accordingly, phylogenetic bracketing woud require that _Deinocheirus_ had 
> > an 
> > arctometatarsalian pes, or secondarily lost it.  Interestingly, under this 
> > phylogeny both _Deinocheirus_ and alvarezsaurids belong to an expanded 
> > Bullatosauria.
> 
> Since _Deinocheirus_ has long been thought to be an ornithomimosaur, it was
> supposed to have an arctometatarsalian pes (or reversal from that state, as 
> you
> say) anyway, and would also have been included under _Bullatosauria_ in
> phylogenies where the clade was not equivalent to _Maniraptoriformes_.
> 
> 
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