Re: Swiming spinosaurus

["Jordan Mallon" <j_mallon@hotmail.com>]

> From: "Demetrios M. Vital" <vita0015@umn.edu>

> I was under the impression that theropods could not supinate or pronate
> their forearms, and that supination and pronation are required for
> quardupedality.
>
> I thought that quadrupedality was out of the question for known theropods.

I believe Charig and Milner had something to say about this in their 1997
paper (sorry, I don't have the full ref.).  As I understand it, they argue
that in interpreting the skeletal anatomy of _Baryonyx_, they could find no
evidence of a gait differing from that of other typical theropods.  That
said, they do support the idea that _Baryonyx_ (and other spinosaurids, I
would guess) could hunker down low and catch aquatic prey.

-Jordan Mallon

http://www.geocities.com/paleoportfolio/
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