re: the bipedal ptero-challenge

[aegyptiacus@aol.com]

Jaime A. Headden wrote :
<snip>
The evidence of pterosaurs being bipedal to run into a take off may not be very 
well substantiated. Evidence is coming to light that suggests they may have had 
moe ... unconventional ... means of lifting off, as any feature that occludes a 
bipedal lifestyle may prevent the running takeoff as well.
<snip>
I can't imagine another way to help take-off from the ground than running on 
hindlimbs while beating the wings. Of course, that doesn't make pterosaurs 
bipedal, just bipedal-runners-to-help-take-off.
Am I missing something?
Cheers,
Jean-Michel