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need a Serpentes definition

To: dinosaur@usc.edu
Subject: need a Serpentes definition
From: david peters <davidrpeters@earthlink.net>
Date: Wed, 23 Mar 2005 17:22:06 -0600 (GMT-06:00)
Reply-to: david peters <davidrpeters@earthlink.net>
Sender: owner-dinosaur@usc.edu

Does anyone have the definition and ref. for Serpentes (Ophidia)?

"taxon x, taxon y, their last common ancestor and all of their descendents"

David Peters
St. Louis

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