.(...)
Ventral bony scales were found in pelycosaurs
(Romer, Laurin & Reisz in Treeof Life). The retaining of this ancestral
character demonstrates the need of belly protection in a sprawl pelycosaur.
(...)
T. Mike Keesey wrote:
_Synapsida_ includes sprawling things like _Dimetrodon_ (maybe introduce
_Casea_, _Edaphosaurus_
etc. if you have pictures) as well as
_Therapsida_.
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?
Thanks in advance, friendly - Luc
J. "Aspidel" BAILLY.