Re: the bipedal ptero-challenge

["James R. Cunningham" <jrccea@bellsouth.net>]

The ones that I mess about with appear to use them to stabilize the
spine, in a manner somewhat similar to that in frogs, and to help
transition some spanwise and chordwise membrane tensile loads into the
torso.
Jim

Jaime A. Headden wrote:
> 

>   Pterosaurs have a very long ilium, but this seems to be adapted to the leg 
> flexors. 

> I have little idea what pterosaurs would want with such
> a long, narrow preacteabular ala but perhaps for support of muscles,
> support ligaments