A new study demonstrates that Tyrannosaurus, Allosaurus and Erlikosaurus show distinct differences in the recruitment of the jaw adductor musculature and resulting gape, confirming previous dietary and ecological assumptions. While the carnivorous taxa T. rex and Allosaurus were capable of a wide gape and sustained muscle force, the herbivorous therizinosaurian Erlikosaurus was constrained to small gape angles.
Read more at: Phys Org.
