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Re: Patagium attachment Was: Re: Pterosaur.net



On Jan 19, 2010, at 10:27 AM, David Peters wrote:

It would probably help in understanding. Jim, if this model wing of yours is a deep wing attached to the ankles or a shallow wing attached at mid thigh. I'm guessing the former because you mentioned, "Increasing the inner wing tension of the retracted wings during a dive by use of hindlimb positioning..."

Just worth noting here that a wing can be attached to the ankles and still be primarily narrow in its chord through most of its length. Therefore presuming a broad or narrow overall wing, based only on attachment, is a error. The outboard wing in every well preserved brachiopatagium is narrow. At the same time, several specimens seem to show some hindlimb attachment - the most simple explanation is therefore that the attachment was broad but the wing was narrow.

Cheers,

--Mike


Michael Habib
Assistant Professor of Biology
Chatham University
Woodland Road, Pittsburgh PA  15232
Buhl Hall, Room 226A
mhabib@chatham.edu
(443) 280-0181