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Re: Pubic boot



-----Original Message-----
From: Patrick Norton <ptnorton@email.msn.com>
To: larryf@capital.net <larryf@capital.net>; dinosaur@usc.edu
<dinosaur@usc.edu>
Date: Wednesday, December 13, 2000 6:59 PM
Subject: Re: Pubic boot


>> What keeps a theropod`s gait strictly parasagittal. Is it attachments
from
>the pubic boot to the femur? <
>
>I may certainly have missed something on this, but has anyone claimed that
a
>theropod's gait is "strictly" parasagittal?
>
>>Hypothetical,....a T-Rex jumps off a 10 ft ledge,...what would keep it`s
>legs from bowing out upon landing?<
>
>If a creature's legs were restricted only to motion along the median plane
>of its body because of some biomechanical constraint, its legs could not
>have bowed out upon landing without tearing tissue or breaking bones.

This is my point though. The ankle was restricted to motion in a single
plane, and I believe the knee was as well. therefor, if the femur wasn`t
constrained, surely the knees would have torn apart....no?