- Length
- 7.5 m
- Diet
- Plant-eater
- When
- Late Cretaceous70 to 66 million years ago
- Fossils found in
- Canada, USA
- Named by
- Marsh (1891)
- Family tree
- Dinosauria › Ornithischia › Ceratopsidae › Chasmosaurinae
Ceratopsians. Horned and frilled plant-eaters, such as Triceratops. See all 29
Lived at the same time
- Alamosaurus · same country
- Dryptosaurus · same country
- Edmontosaurus · same country
- Ornithomimus · same country
- Thescelosaurus · same country
- Arrhinoceratops · same country
- Chirostenotes · same country
- Pachycephalosaurus · same country
Other ceratopsians
- Arrhinoceratops Late Cretaceous
- Triceratops Late Cretaceous
- Leptoceratops Late Cretaceous
- Anchiceratops Late Cretaceous
- Einiosaurus Late Cretaceous
- Nedoceratops Late Cretaceous
- Pachyrhinosaurus Late Cretaceous
- Protoceratops Late Cretaceous
Source: Torosaurus 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.