Ankylosaurs first appeared during the early Jurassic period, and survived until the end of the Cretaceous period, about 65 million years ago, when all the remaining non-avian dinosaurs became extinct.
All Ankylosaurs were herbivores (plant-eaters), quadrupedal (walking on four legs), and protected by armor. Although the amount of armor did differ between species. The Ankylosaurs are principally divided into two families - the Ankylosauridae and the Nodosauridae - the big difference between that most (but not all) of the former have bony clubs in their tails, whereas none of the latter family where equipped with such clubs. Recent research has however added one additional family, Scelidosauridae to the Ankylosaurs - this group currently contains only two early and primitive armored dinosaurs: Bienosaurus and Scelidosaurus.
Ankylosaurs first appeared during the early Jurassic, about 200 million years ago, and survived until the end of the Cretaceous period, about 65 million years ago
Types of Ankylosaurs
Here is a list of some Ankylosaurs:
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