Re: pteros have lift-off

[jrc <jrccea@bellsouth.net>]

There is a 'Z' fold available as part of the launch cycle in both the fore 
and hindlimbs of the pterosaurs that I've worked on.
JimC

----- Original Message ----- 
From: "David Peters" <davidpeters@att.net

> Finally, in present day leapers, from frogs to kangaroos, sort of 'Z' fold 
> gets created by the femur, tibia and tarsal/pedal elements. And lots of 
> final push comes from the large pedal digits. Is there a z-fold analogy in 
> the forelimb of pterosaurs. And is there lots of push coming from the 
> manual digits? At present, I don't see either.