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Re: two or three sacral vertebrae?

To: Multiple recipients of list <dinosaur@lepomis.psych.upenn.edu>
Subject: Re: two or three sacral vertebrae?
From: "Tim Williams" <T.Williams@cclru.randwick.unsw.edu.au>
Date: Tue, 26 Mar 1996 16:01:23 -0500
Reply-to: T.Williams@cclru.randwick.unsw.edu.au
Sender: dinosaur@lepomis.psych.upenn.edu

> >Bottom line question:  What IS the minimum sacral vertebrae count for 
> >dinosaurs?

Interestingly, the paper by Paul Sereno and co. on _Eoraptor_ 
describes this theropod as having three sacral vertebrae.  _Eoraptor_ 
is regarded as more primitive than the herrerasaurids.  But I don't 
believe this paper differentiated between "partly" and "fully" 
incorporated sacrals.

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