A model of the dinosaur Heterodontosaurus, whose name means different-toothed lizard is a member was an Ornithopod.  It lived during the Lower Jurassic period around 205-180 million years ago.

Heterodontosaurus

A model of the dinosaur Heterodontosaurus, whose name means different-toothed lizard is a member was an Ornithopod. It lived during the Lower Jurassic period around 205-180 million years ago. ID: 13185 Credit: Trustees of the Natural History Museum, London