Edmontonia was a genus of armored dinosaur that lived in the Late Cretaceous period. In 1915, fossils were first discovered in the Edmonton Formation, known to be the last of the uncloned ankylosaurs to date.
Looking at Edmontonia's appearance, it would not be an easy meal for a hungry tyrannosaur. Like other ankylosaurs, it was bulky and tank-like designed to stay and fight rather than flee. It had many sharp spikes along its back and tail and small, ridged bony plates on its back and head. There were four larger spikes on the shoulders on each side, two of which were divided into subspines in some specimens. Its skull was pear-shaped. The back in the neck area was protected by a large flat keeled (ridged) plate, while smaller keeled plates covered the back, hips and tail. It walked on all fours and was a plant eater.
One Edmontonia male fought for territory and females. Other large males used their large shoulder spikes for shoving contests. They also hung out alone. The tail was probably a sharp, bony whip, probably good for whipping the tyrannosaur's legs and driving them back.
The estimated size of Edmontonia was 6.6 m in length and weighed 3 tons.
Edmontonia was a dinosaur that ate low plants, such as ferns and cycads.
Looking at Edmontonia's appearance, it would not be an easy meal for a hungry tyrannosaur. It could protect itself with its bulky, tank-like design to stay and fight rather than flee when threatened. They usually crouched down to prevent the attacker from being flipped over. The tail was also probably a sharp, bony whip, probably good for lashing the tyrannosaur's legs and driving them back.
Edmontonia was a genus of armored dinosaurs that lived in the Late Cretaceous period about 67-65 million years ago.