Platypelta Facts
| Diet | Herbivore |
| Height | 1.5m |
| Length | 5m |
| Weight | 2 tonnes |
| Speed | 15 km/h |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Ankylosaur |
| Location | Canada |

| Diet | Herbivore |
| Height | 1.5m |
| Length | 5m |
| Weight | 2 tonnes |
| Speed | 15 km/h |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Ankylosaur |
| Location | Canada |
Platypelta was a heavily armoured ankylosaur that roamed the ancient landscapes of western Canada during the Late Cretaceous period, approximately 83.6 million years ago. This formidable herbivore was built like a living tank, with its body covered in bony plates and spikes that provided excellent protection against predators such as tyrannosaurs that shared its environment.
Measuring around 5 metres in length and standing about 1.5 metres tall at the hip, Platypelta was a medium-sized member of the ankylosaur family. Its most distinctive feature was its broad, flattened back covered in rows of bony osteoderms (armoured plates) that gave it its name, meaning 'flat shield'. Unlike some of its relatives, Platypelta had a relatively low profile, with a wide body and short legs that kept it close to the ground.
As a herbivore, Platypelta fed on low-growing plants, ferns, and cycads that carpeted the Late Cretaceous landscape. Its small teeth and weak jaw muscles suggest it was a selective feeder, carefully choosing tender shoots and leaves rather than tough, fibrous vegetation. The dinosaur's broad gut would have housed bacteria to help break down plant material.
Platypelta lived in what is now the Dinosaur Park Formation of Alberta, an area that was once a warm, humid coastal plain dotted with rivers and lush vegetation. This environment supported a diverse ecosystem of dinosaurs, making it one of the richest fossil-bearing formations in the world.
Platypelta had an unusually broad, flattened back covered in distinctive bony armour plates arranged in regular rows. Its low-slung body profile was wider than many other ankylosaurs, and it possessed a relatively small head compared to its robust, tank-like torso.
Platypelta likely lived in small groups, using its excellent armour as a primary defence strategy when threatened by predators. When attacked, it probably crouched down to protect its vulnerable belly while presenting its heavily armoured back and sides to would-be attackers.
Platypelta was first described by Walter Coombs Jr. in 1982. The original fossils were discovered at Dinosaur Park Formation, Alberta, Canada.