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Re: Postosuchus posture
> Has anyone made a fleshed-out 3D model of Postosuchus in order to
> estimate its center of mass?
After a couple expresssssssssooo breaks (yowzaa!), I now see that a
simple 2D drawing would be perfectly suitable for the experiment.
The important part is to draw the fleshed-out Postie with its thoracic
spine in a natural position but straight and parallel to the ground, with
a straight tail and with its head facing forward. It may be the wrong
position in life, but it is necessary for the experiment. Neck
curvature, as determined by the cervical articulations, should be
preserved. Cut the drawing out, and use a thumbtack to determine where
the ballance point is.
Most obligate bipeds with *tails* have the pivot (ballance) point near
the hips. In obligate quadrupeds, the ballance point can be much further
forward of the hips.
It may help to answer the question. Or maybe not. A crucial step in
drawing Postosuchus is estimating the thickness of its tail (thickness =
mass). If you over- or underestimate, the experiment is tainted.