RE: Evolution of tyrannosauroid bite power

[Tim Williams <twilliams_alpha@hotmail.com>]

Don Ohmes wrote:

> Keeping it simple; given that all theropods were constructed of the same 
> materials, wouldn't relative arm size be expected to generally decrease as 
> overall size increased, irregardless of the implications of diet?

No, this doesn't happen.  It's horses for courses.  True, tyrannosaurs, 
abelisaurs and _Giganotosaurus_ exemplify this trend; but there are also some 
quite large theropods that have relatively long arms, such as _Deinocheirus_ 
and some of the larger maniraptorans (e.g.,  _Gigantoraptor_, large 
dromaeosaurs, large therizinosaurs).  

Cheers

Tim
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