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Re: Pygostyle



In a message dated 11/1/99 10:55:44 PM EST, dbensen@gotnet.net writes:

<< Things like that DO mean something because it seems that
 ONLY ADVANCED BIRDS have pygostyles.  >>

Not if oviraptorosaurs have pygostyles. Also, enantiornithans have 
pygostyles. Are they "advanced birds"?