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Pterosaur pneumaticity [joke, was Re: CONVERGENCE HAPPENS]

Matthew Troutman wrote:
>I was did say that the elongate fourth digit is 
>pneumatized, though.  Regardless of whether pterosaurs had this system 
>or not, all basal birds, including it seems, most enantiornithines lack 
>this type of pneumatization which renders your argument null.
        The absence of this system in basal birds is unsurprising, as basal
birds not only lacked a corresponding elongation of manual digit IV, but
they in fact lacked the homologous digit in its entirity. :)


     Jonathan R. Wagner, Dept. of Geosciences, TTU, Lubbock, TX 79409-1053
 "Only those whose life is short can truly believe that love is forever"-Lorien