Dinosaurs · Large theropod
Alioramus
Say it al-ee-oh-ray-mus. The name means ‘other [evolutionary] branch’.
- Length
- 6 m
- Diet
- Meat-eater
- When
- Late Cretaceous71 to 66 million years ago
- Fossils found in
- Mongolia
- Named by
- Kurzanov (1976)
- Family tree
- Dinosauria › Saurischia › Theropoda › Tyrannosauroidea
Large theropods. Big two-legged meat-eaters, such as Tyrannosaurus. See all 63
Lived at the same time
- Anserimimus · same country
- Borogovia · same country
- Microceratus · same country
- Prenocephale · same country
- Deinocheirus · same country
- Heyuannia · same country
- Homalocephale · same country
- Mononykus · same country
Other large theropods
- Indosuchus Late Cretaceous
- Deinocheirus Late Cretaceous
- Gallimimus Late Cretaceous
- Rajasaurus Late Cretaceous
- Therizinosaurus Late Cretaceous
- Carnotaurus Late Cretaceous
- Abelisaurus Late Cretaceous
- Dromiceiomimus Late Cretaceous
Source: Alioramus 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.