Examination of the limb morphology of small ornithomimids and large tyrannosaurids shows
that they remained remarkably constant in design regardless of size. The changes that were
present were consistent with maintaining limb strength and function constant with size. It is
concluded that ornithomimid and tyrannosaurid legs functioned in a similar manner, and
always exhibit the features normally associated with a fast running gait. This is in contrast to
modern animals, in which elephants as gigantic as large tyrannosaurids have limbs that are …