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Re: RAUHUT ON BASAL THEROPODS



> David Marjanovic wrote-
>
> (referring to the ischial boot)
> > Could it be size-related, a weight-bearing feature?
>
> Ornithomimids have it, tyrannosaurids don't.

Oops.
But... ornithomimids are strongly propubic, and the ischium had the
possibility to reach the ground. Tyrannosaurids are mesopubic, with a
massive pubis and an ischium that can't bear weight. Still, you're right,
that size to which it could be related would be pretty small.