Dinosaurs · Armoured dinosaur
Euoplocephalus
Say it you-OH-plo-kef-ah-luss. The name means ‘well-armoured head’.
- Length
- 7 m
- Weight
- 2 tonnes
- Diet
- Plant-eaterplant material
- Walked
- On 4 legs
- When
- Late Cretaceous76 to 70 million years ago
- Fossils found in
- Canada, USA
- Family tree
- Dinosauria › Ornithischia › Thyreophora › Ankylosauria › Ankylosauridae
Armoured dinosaurs. Plated and armoured plant-eaters, such as Stegosaurus and the ankylosaurs. See all 33
Lived at the same time
- Achelousaurus · same country
- Chirostenotes · same country
- Dryptosaurus · same country
- Edmontosaurus · same country
- Thescelosaurus · same country
- Bambiraptor · same country
- Gryposaurus · same country
- Lophorhothon · same country
Other armoured dinosaurs
- Edmontonia Late Cretaceous
- Tarchia Late Cretaceous
- Panoplosaurus Late Cretaceous
- Saichania Late Cretaceous
- Pinacosaurus Late Cretaceous
- Struthiosaurus Late Cretaceous
- Ankylosaurus Late Cretaceous
- Talarurus Late Cretaceous
Source: Euoplocephalus 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.