Re: T.rex Pubis Boot

[christopher robert noto <crnoto@midway.uchicago.edu>]

Steve,
It may be that what we are seeing here are the effects of allometry on the
proportions of different sized individuals, which will always exist in a
population.  Within certain size ranges, the proportions of various parts
to themselves change, as well as between sizes of individuals.  Larger
individuals may require larger areas for muscle attachments, so this
difference may be an artifact of that.  Perhaps the more well-versed
anatomists among us can elucidate?  

-Chris

On Tue, 10 Apr 2001, Steven Coombs wrote:

> Hi all,
> Could the pubic boot of T.rex, could it play a major role in the sexual 
> dimorphism of T.rex? I find it strange because when I would look at pictures 
> of T.rex skeletons, the skeletons of slimmer T.rexs have smaller pubis 
> boots, but when I look at more robust T.rexs like Sue they have bigger pubis 
> boots than the slimmer ones. Could this be a indication of male and female? 
> And which ones will be the male and the female?
> Thanks
> Steve
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