Euoplocephalus Armored Dinosaur Tooth from Montana

Description: Euoplocephalus was an astonishing looking large armored dinosaur. This three to five ton, up to 20 foot long, behemoths’ body was covered in an array of large sharp spikes to ward off predators like T-Rex. In this it was quite successful and thrived in the late Cretaceous until the great Extinction Event that doomed all the large dinosaurs. Fossils of Euoplocephalus are known from Alberta, Canada and Montana in the United States, including one almost complete skeleton found with its armor still attached.

Ankylosauria is a group of herbivorous dinosaurs of the order Ornithischia. It includes the great majority of dinosaurs with armor in the form of bony osteoderms. Ankylosaurs were bulky quadrupeds, with short, powerful limbs. They are first known to have appeared in the early Jurassic Period of China, and persisted until the end of the Cretaceous Period.