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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.



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