New Mexico Museum of Natural History and Science

This skull is a new kind of tyrannosaur that is similar to, and closely related to, the famous Tyrannosaurus rex.

This tyrannosaur has a large injury (hole) on the lower jaw, perhaps the bite mark of another predator. It lost the tip of one tooth, perhaps during feeding. It also had a broken but healed rib. The tyrannosaur survived these injuries though they probably caused extreme pain.