Re: pterosauria arm folding

[Andrea Spreafico <sprea@linknet.it>]

At 16.41 16/06/97 -0400, you wrote:

>Also, does anyone know anything about rhamphorhynch bipedalism? Is there
>any trackway evidence of this? Anatomical evidence (trackways pretty
>thoroughly demolish the idea that pterodactyloids weren't quadrupedal it
>would appear)? 
>
>
>

As C. McGowan (Dinosaurs, Spitfires & Seadragons, 1991) points out,
rhamphorhynchs had a right, stiff tail, with long vertebrae's processes; so
it may have been not only important during flight, but also an equilibrating
organ on the ground. By this author, at least long-tailed pterosaurs could
have been bipedal.

Eugenio Spreafico