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Re: Giant birds

In a message dated 11/9/99 10:23:19 AM Pacific Standard Time, 
tholtz@geol.umd.edu writes:

> Dromaeosauridae is the
>  clade comprised of all descendants of the most recent common ancestor of
>  _Dromaeosaurus_ and _Velociraptor_; Deinonychosauria is the clade of all
>  taxa closer to _Deinonychus_ than to Neornithes...

>  under the AMNH, Holtz, or Xu et al. cladograms the only
>  known deinonychosaurs are dromaeosaurids.

Unless, of course, _Sinornithosaurus_ really is a deinonychosaur more basal 
than _Dromaeosaurus_!

--Nick P.