Re: CROCODYLOMORPH ENDOTHERMY

["Nicholas J. Pharris" <pharrinj@PLU.edu>]

On Fri, 26 Jan 1996 Dinogeorge@aol.com wrote:

> >Sorry for the mixup.  I was talking about the clade Ornithosuchia 
> >(proposed to include Euparkeria, Ornithosuchidae, and Ornithodira).  Is 
> >this not widely accepted these days?
> 
> In my phylogeny (based on Parrish 1993), this clade is congruent to
> Archosauria sensu stricto: essentially all archosaurs above the
> proterosuchian-erythrosuchian grade. Parrish sets Ornithosuchidae off the
> lineage to Ornithodira, which basically becomes the sister-group to
> Crurotarsi.

I'm still confused.  Are ornithosuchids and _Euparkeria_ still considered 
the closest relatives of ornithodires or not?? 

Last I heard, archosaurs above proterosuchians and erythrosuchians were 
divided into two groups:

Ornithosuchia:  _Euparkeria_, Ornithosuchidae, Ornithodira;
Crurotarsi:  Rauisuchidae, Parasuchia, Aetosauria, Crocodilia

Other suggestions?

Nick Pharris
Pacific Lutheran University
Tacoma, WA 98447
(206)535-8204
PharriNJ@PLU.edu

"If you can't convince them, confuse them." -- Harry S. Truman