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Re: wing extensor placement on pterosaurs
David Peters wrote:
Still hanging out here in St. Louis waiting to see how anyone can get
metacarpals I-III to move _above_ the wing finger extensor when they are
clearly ventral to it in primitive pterosaurs, as demonstrated by
Wellnhofer 1991. I think you can't get there from here.
Wait a second Dave - unless I've missed your point - all I see there is
Wellnhofer drawing the fingers in that position - he doesn't
"demonstrate" it. Wellnhofer could be wrong (indeed, I think he was
wrong about this).
Also, no thoughts on Wellnhofer's reconstruction of digits I-III
torsioned 90 degrees anteriorly on the standard configuration metacarpals?
I vote wrong on that too.