- Length
- 4 m
- Weight
- 150 kg
- Diet
- Ate plants and animalsunknown, could have eaten both plants and small animals
- Walked
- On 2 legs
- When
- Late Cretaceous76 to 74 million years ago
- Fossils found in
- Canada
- Named by
- Osborn (1917)
- 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
- Albertosaurus · same country
- Centrosaurus · same country
- Chasmosaurus · same country
- Chirostenotes · same country
- Corythosaurus · same country
- Daspletosaurus · same country
- Dromaeosaurus · same country
- Edmontonia · same country
Other small theropods
- Dromaeosaurus Late Cretaceous
- Shuvuuia Late Cretaceous
- Stenonychosaurus Late Cretaceous
- Velociraptor Late Cretaceous
- Chirostenotes Late Cretaceous
- Troodon Late Cretaceous
- Avimimus Late Cretaceous
- Heyuannia Late Cretaceous
Source: Struthiomimus 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.