Dinosaurs · Large ornithopod

Lambeosaurus

Say it lam-BEE-oh-SORE-us. The name means ‘Lambes lizard’.

Lambeosaurus beside a person 1.75 m tall. Ticks mark every metre.Body shape drawn for this site, showing the general build of large ornithopods

Length: 9 m
Diet: Plant-eater
When: Late Cretaceous76 to 74 million years ago
Fossils found in: Canada
Named by: Parks (1923)
Family tree: Dinosauria › Ornithischia › Ornithopoda › Hadrosauridae › Lambeosaurinae

Where Lambeosaurus sits in the age of dinosaurs.Periods from the ICS chart; dinosaur dates from the Natural History Museum

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

Albertosaurus · same country
Centrosaurus · same country
Chasmosaurus · same country
Chirostenotes · same country
Corythosaurus · same country
Daspletosaurus · same country
Dromaeosaurus · same country
Edmontonia · same country

Other large ornithopods

Corythosaurus Late Cretaceous
Edmontosaurus Late Cretaceous
Gilmoreosaurus Late Cretaceous
Rhabdodon Late Cretaceous
Parasaurolophus Late Cretaceous
Prosaurolophus Late Cretaceous
Hadrosaurus Late Cretaceous
Kritosaurus Late Cretaceous

Source: Lambeosaurus 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.