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PAPER REQUEST - Turtles are parareptiles, and Eunotosaurus is their sister
Could anyone whose university is not blocked by an embargo, pass this paper
along to me.
--- On Wed, 6/9/10, Thomas R. Holtz, Jr. <email@example.com> wrote:
> From: Thomas R. Holtz, Jr. <firstname.lastname@example.org>
> Subject: Turtles are parareptiles, and Eunotosaurus is their sister
> To: email@example.com
> Date: Wednesday, June 9, 2010, 9:22 AM
> Lyson, T.R., G.S. Bever, B.S. Bhullar, W.G. Joyce &
> J.A. Gauthier. In press.
> Transitional fossils and the origin of turtles. Biol.
> Lett. published
> online before print June 9, 2010,
> The origin of turtles is one of the most contentious issues
> in systematics
> with three currently viable hypotheses: turtles as the
> extant sister to (i)
> the crocodile-bird clade, (ii) the lizard-tuatara clade, or
> (iii) Diapsida
> (a clade composed of (i) and (ii)). We reanalysed a recent
> dataset that
> allied turtles with the lizard-tuatara clade and found that
> the inclusion of
> the stem turtle Proganochelys quenstedti and the
> 'parareptile' Eunotosaurus
> africanus results in a single overriding morphological
> signal, with turtles
> outside Diapsida. This result reflects the importance of
> fossils when long branches separate crown clades, and
> highlights unexplored
> issues such as the role of topological congruence when
> using fossils to
> calibrate molecular clocks.
> Thomas R. Holtz, Jr.
> Email: firstname.lastname@example.org
> Phone: 301-405-4084
> begin_of_the_skype_highlighting 301-405-4084 end_of_the_skype_highlighting
> Office: Centreville 1216
> Senior Lecturer, Vertebrate Paleontology
> Dept. of Geology, University of Maryland
> Fax: 301-314-9661
> Faculty Director, Science & Global Change Program,
> College Park Scholars
> Fax: 301-314-9843
> Mailing Address: Thomas R. Holtz, Jr.
> Building 237, Room 1117
> University of Maryland
> College Park, MD 20742 USA