Carnotaurus is one of the few known theropod dinosaurs with horns on its head. elaborate
Herrerasaurus, one of the earliest known dinosaurs, lived during the Late Triassic period, predating many of the more well-known dinosaur groups. elaborate
Hadrosaurus was the first nearly complete dinosaur skeleton found in North America. elaborate
Teratophoneus, meaning "monstrous murderer," had a relatively short skull compared to other tyrannosaurids. elaborate
Cryolophosaurus's head crest wasn't upright like other dinosaurs with crests; it was more of a flat, forward-curving "Elvis" style. elaborate
Chasmosaurus had an enormous frill, which may have been brightly colored for display, and could reach up to 6 feet across! elaborate