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Re: pdf request
So does that mean that the anapsid condition was NOT the ancestral condition of
the amniotes? Sounds kind of strange to me because the first tetrapods lacked a
t.f. entirely. The mesosaurs are definately mysterious-why do they seem to
appear out of nowhere?
From: "Thomas R. Holtz, Jr." <tholtz@umd.edu>
To: tyazbeck@comcast.net
Cc: "DML" <dinosaur@usc.edu>
Sent: Tuesday, June 12, 2012 1:57:34 PM
Subject: Re: pdf request
On Tue, June 12, 2012 12:25 pm, tyazbeck@comcast.net wrote:
> Anyone have the new paper on Mesosaurus being a synapsid available? Other
> references on the mesosaurs would be good too. THanks in advance
http://www.academie-sciences.fr/activite/cr/CRPalevol_article.pdf
And the paper does not argue that Mesosaurus was a synapsid: rather, it
observes that it had a lateral temporal fenestra. And as such either the
ltf appeared in the ancestor of all amniotes and was subsequently covered
over/lost in various subbranches or it evolved multiple times.
Thomas R. Holtz, Jr.
Email: tholtz@umd.edu Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
http://www.geol.umd.edu/~tholtz/
Fax: 301-314-9661
Faculty Director, Science & Global Change Program, College Park Scholars
http://www.geol.umd.edu/sgc
Fax: 301-314-9843
Mailing Address: Thomas R. Holtz, Jr.
Department of Geology
Building 237, Room 1117
University of Maryland
College Park, MD 20742 USA