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Date: Tue, 20 Mar 2001 19:48:37 -0800 (PST)
From: "Jaime A. Headden" <qilongia@yahoo.com>
To: PhyloCode@ouvaxa.cats.ohiou.edu, dinosaur@usc.edu
Cc: NJPharris@aol.com, tmk@dinosauricon.com
Subject: Re: Megalancosaurus, Longisquama & other oddballs
Nick Pharris (NJPharris@aol.com) wrote: <As has already been pointed out, Pseudosuchia should be discarded in favor of Crocodylotarsi.> While essentially this might be a good way to sit down and expressely evaluate the "appropriateness" of certain archosaur taxonomy, and I could say pleasently I'd like not to have to deal with Pseudosuchians and Ornithosuchians, which no longer pertain to their original content, this is based on the definition, and one should strive to correct definition with original intent, if the usage was foolish. The usage of Ornithosuchia can be limited to all taxa closer to *Ornithosuchus* than to either *Crocodylus* and *Passer.* Pseudosuchia can then be established as non-crocodyliform suchians, as originally used, and thus may be useful as only a paraphyletic assemblage. From there, one might want to consider 1) priority of usage, and 2) established literature and usage therein. How many papers have used the non-eponymous Ornithosuchia (phylogenetic usage) compared to the relevent lit on eponymous Ornithosuchia? More later, ===== Jaime A. Headden Aaaaaaaaaaaaaaaaaaaahhhhhhhhhhhhhhhhhhr-gen-ti-na Where the Wind Comes Sweeping Down the Pampas!!!! __________________________________________________ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/