Re: wing extensor placement on pterosaurs

[David Peters <davidrpeters@earthlink.net>]

  David P wrote:  Funny things happen when you just look at the acme  
of the Pterosauria (Quetz. Ornitho. Pterano.).


David M wrote: Terminological nitpicking -- from another point of  
view, the anurognathids are the acme...


>>

True enough. E. coli is also at the top of its game. The acme of its  
genre. But it doesn't have an elongated metacarpus.

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.

Also, no thoughts on Wellnhofer's reconstruction of  digits I-III  
torsioned 90 degrees anteriorly on the standard configuration  
metacarpals?

No votes have been cast yet.

David Peters