Dinosaurs · Large ornithopod
Hypacrosaurus
Say it hi-pak-roh-sore-us. The name means ‘near-topmost lizard’.
- Length
- 9 m
- Diet
- Plant-eater
- When
- Late Cretaceousabout 70 million years ago
- Fossils found in
- Canada, USA
- Named by
- Brown (1913)
- Family tree
- Dinosauria › Ornithischia › Ornithopoda › Hadrosauridae › Lambeosaurinae
Large ornithopods. Big plant-eaters that walked on two or four legs, including the duck-billed dinosaurs. See all 36
Lived at the same time
- Achelousaurus · same country
- Alamosaurus · same country
- Anchiceratops · same country
- Arrhinoceratops · same country
- Chirostenotes · same country
- Dromiceiomimus · same country
- Dryptosaurus · same country
- Edmontosaurus · same country
Other large ornithopods
- Secernosaurus Late Cretaceous
- Saurolophus Late Cretaceous
- Corythosaurus Late Cretaceous
- Edmontosaurus Late Cretaceous
- Gilmoreosaurus Late Cretaceous
- Lambeosaurus Late Cretaceous
- Rhabdodon Late Cretaceous
- Parasaurolophus Late Cretaceous
Source: Hypacrosaurus 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.