What is Ornithomimidae?
Ornithomimidae are the ostrich-like dinosaurs: toothless beaks, long necks, long legs and large eyes. They lived in the Cretaceous of Asia and North America and were probably fast runners, though speed is estimated from anatomy rather than measured.
Feathered arms have been reported on some North American specimens. Their diet was probably omnivorous or plant-focused, but the evidence is indirect and still debated.
How this group is defined here
Members are the 4 field notes whose family or immediate parent group in the Paleobiology Database catalogue is Ornithomimidae. The interpreted diet field across the group is omnivore, based on skeletal features rather than direct observation. Groups are revised when new fossils are described, and some genera are placed here with less certainty than others, so each field note records its sources and limits.
