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Re: Swimming spinosaurus

On 17 Jul 2001, Mickey Mortimer wrote:
> It's a good question whether spinosaurid
> hands could pronate, as no carpi are known, and the metacarpus is only
> represented by a third metacarpal in Suchomimus.  Of course, they were
most
> parsimoniously similar to other basal tetanurines.

Can *any* theropod hands pronate and supinate?  What is needed to allow
this movement in the wrist?

Thanks,

Demetrios