Heterodontosaurus had different shaped teeth – some like incisors for cropping plants, others like canines for defense, and molars for grinding. This diverse dentition is unique among early ornithischians. elaborate
Shantungosaurus, despite its massive size, is believed to have been a relatively fast runner for a hadrosaur. elaborate
The Nigersaurus's jaws contained over 500 teeth, constantly being replaced throughout its life. elaborate
Archaeopteryx fossils show evidence of both reptilian teeth and feathered wings. elaborate
Pachyrhinosaurus had a bony boss on its nose instead of a horn like other ceratopsians. elaborate
Lesothosaurus is considered by some paleontologists to be one of the earliest ornithischian dinosaurs. elaborate