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Re: ON ALL FOURS: PSITTACOSAURUS



The femur in Psittacosaurus somewhat curved, therefore I would say Psittacosaurus was a general quadruped with some bipedal abilities. Because of all this talk on Psittacosaurus and some new findings, I have included a line drawing of  Psittacosaurus that I made. It is based on the recent finding of hair on a Psittacosaurus fossil and a quadrupedal stance. Note that the nose is oriented towards the front of the skull. 
----- Original Message -----
From: "Dann Pigdon" <dannj@alphalink.com.au>
To: <dinosaur@usc.edu>
Sent: Wednesday, August 22, 2001 3:14 PM
Subject: Re: ON ALL FOURS: PSITTACOSAURUS

> I read somewhere that, as a general rule, you can tell a biped from a
> quadruped by the shape of the femur. If it's straight, it was probably a
> quadruped. If it's curved, a biped. Is this correct? If so it would
> suggest that Leptoceratops was a quadruped (as I reconstruct it). What
> are the fermora of psittacosaurids like?
>
>
> --
> ________________________________________________________________
>
> Dann Pigdon                   Australian Dinosaurs:
> GIS Archaeologist          
http://www.geocities.com/dannsdinosaurs
> Melbourne, Australia        http://www.alphalink.com.au/~dannj/
> ________________________________________________________________

Attachment: psittacosaurus.jpg
Description: JPEG image