Dinosaurs · Small theropod
Archaeornithomimus
Say it Ark-ee-orn-ith-oh-meem-us. The name means ‘ancient bird mimic’.
- Length
- 3.5 m
- Diet
- Meat-eater
- When
- Late Cretaceous95 to 70 million years ago
- Fossils found in
- China, Uzbekistan
- Named by
- Russell (1972)
- Family tree
- Dinosauria › Saurischia › Theropoda › Ornithomimosauria › Ornithomimidae
Small theropods. Small two-legged dinosaurs, many feathered, the group that includes birds. See all 60
Lived at the same time
- Alectrosaurus · same country
- Sonidosaurus · same country
- Tanius · same country
- Microceratus · same country
- Bactrosaurus · same country
- Micropachycephalosaurus · same country
- Nanshiungosaurus · same country
- Tsintaosaurus · same country
Other small theropods
- Urbacodon Late Cretaceous
- Unenlagia Late Cretaceous
- Buitreraptor Late Cretaceous
- Erlikosaurus Late Cretaceous
- Alvarezsaurus Late Cretaceous
- Oviraptor Late Cretaceous
- Saurornithoides Late Cretaceous
- Bambiraptor Late Cretaceous
Source: Archaeornithomimus in the Natural History Museum Dino Directory, read 12 November 2026. Sizes are the museum's estimates for a typical adult. "Lived at the same time" lists dinosaurs whose dates overlap, which does not always mean they met.