Re: illustrations

["Jack Conrad" <conradjack@hotmail.com>]

> Okay, its no problem to re-draw the hands. I do a lot of "post-production"
> work in Photoshop as it is. But I need to make sure. This is an absolute
> certaintly, right?

I should have mentioned earlier that this condition palms inward seems to be 
strongest in theropods.  Trackways of quadrupedal dinosaurs the digits 
display only slight medial orientation of the palms.  Also, _Tyrannosaurus 
rex_ seems to have palms which face almost dorsomedially when the humeri are 
placed vertically (evidenced by "Sue").

> I
> assumed that the purpose of a dual bone system was to provide some swivel.)

In looking at the specimens on hand here (including a basal theropod, a 
tetanuran, and a coelurosaur), the proximal end of the radius is not round, 
but ovate or D-shaped.  This would have limited the ability of the forearm 
to rotate.

Good night, everyone.

Jack

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