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>In a message dated 95-12-01 20:25:41 EST, Robert.J.Meyerson@uwrf.edu (Rob
>Meyerson) writes:
>>How does the evolution of the patagium (the flap of skin covering the
>>forearm, forming the airfoil shape) fit in with all of this?  Perhaps
>>explaining how that evolved could help us solve this riddle?
>That would be a pterosaur and bat adaptation, not (as far as I know, but
>anything is possible, etc., etc.) an avian adaptation.

In fact, there is no evidence to support the presence of a patagium in avian
evolution, and much to refute it (with regards to wing morphology, shoulder
morphology, featers, etc.).

Thomas R. Holtz, Jr.
Vertebrate Paleontologist
Dept. of Geology
University of Maryland
College Park, MD  20742
Email:Thomas_R_HOLTZ@umail.umd.edu (th81)
Fax: 301-314-9661