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Re: All those apsids

>From: ornstn@inforamp.net (Ronald Orenstein)
 > 
 > Are the euryapsids no longer classified as a monphyletic group?  I see you
 > include ichthyosaurs and plesiosaurs among diapsids (placodonts, mesosaurs
 > and nothosaurs too, I suppose?).

They are no longer even really considered a *para*phyletic group.

If I remember rightly, the icthyosaurs and plesiosaurs are now
held to have evolved the "euryapsid" condition seperately.  And
I am not entirely sure where the mesosaurs are now put.

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

The peace of God be with you.