Dinosaurs · Armoured dinosaur

Ankylosaurus

Say it An-KYE-low-sore-us. The name means ‘fused lizard’.

Ankylosaurus beside a person 1.75 m tall. Ticks mark every metre.Body shape drawn for this site, showing the general build of armoured dinosaurs

Length: 8 m
Weight: 8 tonnes
Diet: Plant-eaterplant material, including ferns, shrubs and fruit
Walked: On 4 legs
When: Late Cretaceous68 to 66 million years ago
Fossils found in: Canada, USA
Named by: Brown (1908)
Family tree: Dinosauria › Ornithischia › Thyreophora › Ankylosauria › Ankylosauridae

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

Armoured dinosaurs. Plated and armoured plant-eaters, such as Stegosaurus and the ankylosaurs. See all 33

Lived at the same time

Alamosaurus · same country
Dryptosaurus · same country
Edmontosaurus · same country
Ornithomimus · same country
Pachycephalosaurus · same country
Thescelosaurus · same country
Torosaurus · same country
Triceratops · same country

Other armoured dinosaurs

Tarchia Late Cretaceous
Edmontonia Late Cretaceous
Euoplocephalus Late Cretaceous
Panoplosaurus Late Cretaceous
Saichania Late Cretaceous
Pinacosaurus Late Cretaceous
Struthiosaurus Late Cretaceous
Talarurus Late Cretaceous

Source: Ankylosaurus 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.