ankylosaur

noun

1. any of several herbivorous dinosaurs of the suborder Ankylosauria, from the Cretaceous Period, having the body covered with thick, bony plates.

noun

1. any of various quadrupedal herbivorous ornithischian dinosaurs constituting the suborder Ankylosauria, which were most abundant in upper Cretaceous times and had a very heavily armoured tanklike body

1. A large, herbivorous dinosaur of the genus Ankylosaurus of the Cretaceous Period. Ankylosaurs had a squat, heavily armored body and a clubbed tail.