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Re: Removing segnosaurs from ...

 From: Dinogeorge@aol.com
 > It would probably be a lot easier for the pinched metatarsal III of the
 > arctometatarsalian pes to evolve a second or third time than for the
 > tetradactyl prosauropod-like pes to re-evolve from the functionally tridactyl
 > theropod pes.  ;-)

I seem to remember that the herrerasaurs had a tetradactyl foot.
Is this correct?  I suggest that a seperate descent from the
herrerasaurs is another possiblity that needs to be considered
here.

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

The peace of God be with you.