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Re: Questions

To: Multiple recipients of list <dinosaur@lepomis.psych.upenn.edu>
Subject: Re: Questions
From: Stan Friesen <swf@ElSegundoCA.ATTGIS.COM>
Date: Mon, 7 Aug 1995 18:02:57 -0400
Reply-to: swf@ElSegundoCA.ATTGIS.COM
Sender: dinosaur@lepomis.psych.upenn.edu

>From: FUCCI@CERNVM.cern.ch
 > 
 > The discovery of Protoavis seems to indicate that Archaeopteryx is
 > not the ancestor of all modern birds.

Only if it is really a bird, *and* no theropod group is derived
from avian morphology ancestors (as Olshevsky suggests).

 > Is Archaeopteryx on a separate line which has extincted?

Maybe.  Maybe not.  All the evidence is not yet in.

[Actually, even as an "ancestral" bird, it is extremely unlikely
that it is actually the common ancestor of all later birds].

 > Is still possible that Dinosaurs are on the line which goes to
 > Protoavis and then to the birds?

Maybe.

swf@elsegundoca.attgis.com              sarima@netcom.com

The peace of God be with you.