(from the article `dinosaur`) The ankylosaurs are known from the Late Jurassic and Cretaceous periods. They are called `armoured dinosaurs` for their extensive mosaic of small and ... ...pelvis) and Saurischia (having a reptilian pelvis). Ornithischia included four suborders: Ornithopoda (Iguanodon and similar herbivores), ...... Found on http://www.britannica.com/eb/a-z/a/77
any of several herbivorous dinosaurs of the suborder Ankylosauria, from the Cretaceous Period, having the body covered with thick, bony plates. Also called Found on https://www.infoplease.com/dictionary/ankylosaur