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>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.

I am not sure what you mean by this.  Obviously as living birds possess a
propatagium and metapatagium these structures must have appeared at some
point in avian evolution.
Ronald I. Orenstein                           Phone: (905) 820-7886 (home)
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