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Re: What does the pteroid point to?



It is rather mobile about several axes for several reasons. It doesn't point straight forward and down, and it isn't always directed toward the tip of the deltopectoral crest.
JimC

----- Original Message ----- From: "Mike Habib" <habib@jhmi.edu>
To: <davidrpeters@charter.net>
Cc: <dinosaur@usc.edu>
Sent: Friday, July 17, 2009 12:49 PM
Subject: Re: What does the pteroid point to?


It depends on what you think the extent of the propatagium is. If the propatagium extends onto the neck, then the pteroid might point towards the lower cervicals, as in the recent manuscripts you cited.

--Mike


Michael Habib, M.S.
PhD. Candidate
Center for Functional Anatomy and Evolution
Johns Hopkins School of Medicine
1830 E. Monument Street
Baltimore, MD 21205
(443) 280-0181
habib@jhmi.edu



On Jul 17, 2009, at 8:03 AM, David Peters wrote:

What does the pteroid point to, if not the deltopectoral crest? Three recent studies do not have the pteroid directed toward the dpcrest but somewhere anterior to it and beyond, like the cervical series.

--
David Peters
davidrpeters@charter.net

Frey E, Buchy M-C, Stinnesbeck W. 2006. Muzquizopteryx coahuilensis
n.g, n.sp, a nyctosaurid pterosaur with soft tissue preservation from
the Coniacian (Late Cretaceous) of northeast Mexico (Coahuila).
Oryctos. 6:19–39.

Bennett SC. 2008. Morphological evolution of the forelimb of  pterosaurs:
myology and function. In: Buffetaut E, Hone DWE, editors.
Zitteliana Series B, 28 (Special Volume: Flugsaurier: pterosaur
papers in honour of Peter Wellnhofer). p. 127–141.

Prondvai, Edina and Hone, David W. E.(2009)'New models for the wing extension in pterosaurs',Historical Biology,