Dinosaurs · Large ornithopod
Parasaurolophus
Say it pa-ra-saw-ROL-off-us. The name means ‘like Saurolophus’.
- Length
- 9 m
- Weight
- 5 tonnes
- Diet
- Plant-eaterpine needles, tree leaves
- Walked
- On 2 or 4 legs
- When
- Late Cretaceous77 to 73 million years ago
- Fossils found in
- Canada, USA
- Named by
- Parks (1922)
- 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
- Bambiraptor · same country
- Chirostenotes · same country
- Dryptosaurus · same country
- Gorgosaurus · same country
- Gryposaurus · same country
- Lophorhothon · same country
- Edmontosaurus · same country
Other large ornithopods
- Prosaurolophus Late Cretaceous
- Corythosaurus Late Cretaceous
- Edmontosaurus Late Cretaceous
- Gilmoreosaurus Late Cretaceous
- Hadrosaurus Late Cretaceous
- Kritosaurus Late Cretaceous
- Lambeosaurus Late Cretaceous
- Rhabdodon Late Cretaceous
Source: Parasaurolophus 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.