Ornithomimids (OR-nith-oh-MY-mids) were theropod dinosaurs, but unlike most, they had small heads with toothless beaks. They ate seeds, fruits, and perhaps small animals. Like other herbivorous dinosaurs, many ornithomimids swallowed small stones, called gastroliths, to help break down tough foods in their stomachs. Ornithomimids are sometimes called “ostrich dinosaurs” because of their resemblance to those modern birds. Recent discoveries in China show that some species lived in groups. Our local fossils include a large piece of a tibia (shin bone), an ankle bone, and claws.
Would you like to know more about:
- How do we know some dinosaurs had beaks?
- How do we know how extinct animals moved? Watch a video or read about the evidence.
- How can dinosaurs be identified from bone fragments?