Ankylosaurus is considered the armoured tank of the dinosaur world. This dinosaur sported bony armour, and club-like weapon on the end of its tail. The club was most likely used as a defensive weapon against predators, such as Tyrannosaurus Rex. Its name derived from the Greek words, which means “fused lizard”, due to the way its armor plates link together.

The animal was almost completely covered with armoured plates, with the exception of its underbelly. These plates are known as “osteoderms” or “scuits”, which are similar to a crocodile’s skin. These plates were composed of a thin, dense layer of bone.


The Ankylosaurus was one of the largest of the Ankylosauria family. Specimens of this dinosaur have been found up to 6 metres long and 1.7 metres long. It weight approximately 3.6 metric tons.

Ankylosaurus’ Diet

This dinosaur most likely grazed on low lying plants, which included leaves and fruit. It’s small leaf-shaped teeth were optimised for breaking plant matter. This animal had a rugged digestive system, which enabled it to break down the massive amounts of plants it consumed.

Discovery & Location

The Ankylosaurus lived in what is now the United States and Canada. It lived approximately 66 million years ago in the late Cretaceous period.