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Re: the bipedal ptero-challenge

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

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