Dinosaurs · Large theropod
Therizinosaurus
Say it theh-riz-in-oh-SORE-us. The name means ‘scythe lizard’.
- Length
- 10 m
- Diet
- Plant-eater
- Walked
- On 2 legs
- When
- Late Cretaceousabout 70 million years ago
- Fossils found in
- Mongolia
- Named by
- Maleev (1954)
- Family tree
- Dinosauria › Saurischia › Theropoda › Therizinosauroidea › Therizinosauridae
Large theropods. Big two-legged meat-eaters, such as Tyrannosaurus. See all 63
Lived at the same time
- Alectrosaurus · same country
- Alioramus · same country
- Anserimimus · same country
- Borogovia · same country
- Deinocheirus · same country
- Gallimimus · same country
- Heyuannia · same country
- Homalocephale · same country
Other large theropods
- Deinocheirus Late Cretaceous
- Gallimimus Late Cretaceous
- Alioramus Late Cretaceous
- Carnotaurus Late Cretaceous
- Indosuchus Late Cretaceous
- Rajasaurus Late Cretaceous
- Tyrannosaurus Late Cretaceous
- Abelisaurus Late Cretaceous
Source: Therizinosaurus 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.