Lesothosaurus is considered by some paleontologists to be one of the earliest ornithischian dinosaurs. elaborate
Teratophoneus, meaning "monstrous murderer," had a relatively short skull compared to other tyrannosaurids. elaborate
Ouranosaurus's distinctive sail might have been used for thermoregulation, acting like a radiator to both absorb and release heat efficiently. elaborate
Pachyrhinosaurus had a bony boss on its nose instead of a horn like other ceratopsians. elaborate
Limusaurus, a small theropod dinosaur, is notable for losing its teeth as it matured. elaborate
Deinocheirus's arms were so long that its hands reached past its knees. elaborate