Chassternbergia 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 | North America |

| Diet | Herbivore |
| Height | 1.5m |
| Length | 5m |
| Weight | 2 tonnes |
| Speed | 15 km/h |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Ankylosaur |
| Location | North America |
Chassternbergia was a heavily armoured ankylosaur that roamed the ancient landscapes of western North America during the Late Cretaceous period, between 83.6 and 72.2 million years ago. This formidable herbivore was built like a living tank, with thick bony plates and spikes covering its back and sides to protect it from the fearsome predators of its time.
Measuring approximately 5 metres in length and standing 1.5 metres tall at the hip, Chassternbergia was a medium-sized member of the ankylosaur group. Its broad, low-slung body was supported by four sturdy legs, perfectly adapted for its quadrupedal lifestyle. The creature's back was covered in rows of bony osteoderms - natural armour plates that formed an almost impenetrable shield.
As a dedicated herbivore, Chassternbergia spent its days browsing on low-growing plants, ferns, and cycads. Its small head housed a beak-like mouth and simple teeth designed for cropping vegetation rather than chewing. The dinosaur would have used its muscular gut to ferment and digest the tough plant material it consumed.
Chassternbergia lived in the warm, humid environments of Late Cretaceous North America, sharing its habitat with other dinosaurs including tyrannosaurs, hadrosaurs, and ceratopsians. Its impressive defensive armour was likely its primary means of survival in this dangerous prehistoric world.
Chassternbergia possessed distinctive rows of bony armour plates along its back and sides, with prominent shoulder spikes extending outwards. Its broad, flattened skull featured small eyes and a narrow beak perfectly suited for selective plant feeding.
Chassternbergia likely lived in small herds for protection, using its impressive speed of up to 15 km/h to escape predators when its armour wasn't enough. When threatened, it probably crouched down to protect its vulnerable belly, presenting only its spiky, armoured back to attackers.
Chassternbergia was first described by William Parks in 1988. The original fossils were discovered at Alberta, Canada.