Re: pterosaur femora sprawl

[jrc <jrccea@bellsouth.net>]

----- Original Message ----- 

> > Every pterosaur could get their backbone horizontal. That's how they 
> > rested.

But most don't have a built-in provision to support the entire weight 
through the skeletal system without aid of supplemental muscle power (not a 
resting posture) while the backbone is horizontal.

> As you suggest, walking requires an elevation of the shoulder to align the 
> axes and
> match the tracks.

I never suggested that.  You're putting words in my mouth. :-)

>  Are you saying that azhdarchids were not soarers?
> > You're reading too much into it. I think the question was about which 
> > were the
> > beachcoming taxa, the kind that had flat feet and made prints.

It wasn't a response to a question.  It was a response to a comment that 
azhdarchids (among others) weren't suited to soaring.
JimC