Ankylosaurus magniventris was the biggest and heaviest of the several ankylosaurid species and grew up to 33 feet (10 meters) long.

The franchise took great pains to recreate a multitude of dinosaur species that roamed the Earth ... spikes and ball at the ...

Ornithischians were one of the two major groups of dinosaurs and included such familiar species as the armor-plated Stegosaurus and Ankylosaurus and the three-horned Triceratops. Lesothosaurus was ...