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RE: cervical vertebrae in Archosauromorphs
> From: email@example.com [mailto:firstname.lastname@example.org]On Behalf Of
> Ken Kinman
> I was just looking at Benton and Allen's 1997 paper on
> And if I am reading their character table correctly, they show
> Rhynchosaurus, Trilophosaurus and Megalancosaurus as having 7 or fewer
> cervical vertebrae. I do not know off hand how many cervical vertebrae
> there are in choristoderes.
> However, if I am reading Benton and Allen correctly,
> Longisquama might
> fit in rather nicely as a basal Archosauromorph in the vicinity of
Thanks: I'll have to hunt up my copy of the Boreopricea paper. It is true
(looking through old papers) that drepanosaurids do have only 7 cervicals:
I'll have to hunt up a rhynchosaur and a trilophosaur to check those guys.
Choristoderes have seven definite cervicals, then a few which sort of blend
Still, even in this case, there is still no positive evidence that
_Longisquama_ is an archosauromorph rather than a lepidosauromorph or a
diapsid outside of Sauria. Some positive evidence would be nice.
Thomas R. Holtz, Jr.
Department of Geology Director, Earth, Life & Time Program
University of Maryland College Park Scholars
College Park, MD 20742
Phone: 301-405-4084 Email: email@example.com
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