- Length
- 1 m
- Diet
- Not known
- When
- Late Cretaceous81 to 68 million years ago
- Fossils found in
- China, Mongolia
- Named by
- Perle, Norell, Chiappe and Clark (1993)
- Family tree
- Dinosauria › Saurischia › Theropoda › Neotheropoda › Tetanurae › Avetheropoda › Coelurosauria › Tyrannoraptora › Maniraptoriformes › Maniraptora › Alvarezsauridae
Small theropods. Small two-legged dinosaurs, many feathered, the group that includes birds. See all 60
Lived at the same time
- Anserimimus · same country
- Borogovia · same country
- Microceratus · same country
- Sonidosaurus · same country
- Tanius · same country
- Prenocephale · same country
- Alectrosaurus · same country
- Archaeornithomimus · same country
Other small theropods
- Citipati Late Cretaceous
- Conchoraptor Late Cretaceous
- Khaan Late Cretaceous
- Avimimus Late Cretaceous
- Chirostenotes Late Cretaceous
- Troodon Late Cretaceous
- Bambiraptor Late Cretaceous
- Borogovia Late Cretaceous
Source: Mononykus 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.