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Re: Sinornithomimus, new dino in Acta Palaeontologica Polonica



Ben Creisler wrote-

> We propose a paleogeographically based division of
> the Tyrannosaurinae into the Asiatic forms (Tarbosaurus
> and possibly Alioramus) and North American forms
> (Daspletosaurus and Tyrannosaurus).

But Currie et al. (2003) place Daspletosaurus as the sister group of the
Asiatic taxa.  Notably, both this clade and the Asiatic clade are supported
by a single synapomorphy.  Wonder what would happen when Holtz's (2001)
postcranial characters are added.

Mickey Mortimer