Carnosaur
The legs are adapted for running, but not extremely so. They had strong arms, probably used to wrestle prey as the teeth bit in. The structure of an Allosaurus suggests a strongly-built general all-round predator. This is a different from a tyrannosaur like Albertosaurus, which was better adapted for running on open ground. Tyrannosaurs, with their small two-fingered hands, would use their heads for killing prey, and for head-butting rivals.