Re: Pelicosaurs: sprawling or not?

["T. Michael Keesey" <mightyodinn@yahoo.com>]

--- Aspidel <aspidel@wanadoo.be> wrote:
>
>   In PT#50, Tracy Ford wrote in a paper about "how to draw non-dinosaurs" 
> (:-) that, based on
> tracks and on some features of the articulations of the limb, we'll maybe 
> have to re-study  the
> walk of _Dimetrodon_ and _Edaphosaurus_: they may have walked with a quite 
> erected stance.
> 
>   What's your current opinion on this subject?

I was under the impression that even monotremes have a semi-sprawling posture 
and that, among
synapsids, fully erect stance is seen only in therians. Would like to know if 
this is wrong.

=====
=====> T. Michael Keesey <keesey@bigfoot.com>
=====> The Dinosauricon <http://dinosauricon.com>
=====> BloodySteak <http://bloodysteak.com>
=====> Instant Messenger <Ric Blayze>
=====

__________________________________________________
Do You Yahoo!?
Yahoo! Tax Center - online filing with TurboTax
http://taxes.yahoo.com/