- Length
- 4 m
- Diet
- Plant-eater
- When
- Late Cretaceous76 to 74 million years ago
- Fossils found in
- Canada
- Named by
- Sternberg (1928)
- Family tree
- Dinosauria › Ornithischia › Thyreophora › Ankylosauria › Nodosauridae
Armoured dinosaurs. Plated and armoured plant-eaters, such as Stegosaurus and the ankylosaurs. See all 33
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
- Edmontosaurus · same country
Other armoured dinosaurs
- Euoplocephalus Late Cretaceous
- Tarchia Late Cretaceous
- Panoplosaurus Late Cretaceous
- Saichania Late Cretaceous
- Pinacosaurus Late Cretaceous
- Struthiosaurus Late Cretaceous
- Ankylosaurus Late Cretaceous
- Talarurus Late Cretaceous
Source: Edmontonia 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.