The Ankylosaurus is a large dino found in a small valley. The Ankylosaurus will not move, it will only swing its tail upwards to obstruct the player. However, the player can run up the dino even if its tail is raised, as though it were just another rock. The Ankylosaurus cannot be killed, even if the player has a strength power-up.
The only other place where the Ankylosaurus appears is in the UFO at the end of Beyond Apocalypse. It is accompanied by a mate and one child.
They sometimes appear by waterfalls or rocky areas.
Ankylosaurus was a huge armored dinosaur, measuring about 25-35 feet (7.5-10.7 m) long, 6 feet (1.8 m) wide and 4 feet (1.2 m) tall; it weighed roughly 3-4 tons.Its entire top side was heavily protected from carnivores with thick, oval plates embedded (fused) in its leathery skin, 2 rows of spikes along its body, large horns that projected from the back of the head, and a club-like tail. It even had bony plates as protection for its eyes. Only its under-belly was unplated. Flipping it over was the only way to wound it. Ankylosaurus had four short legs (the rear legs were larger than the front legs), a short neck, and a wide skull with a tiny brain. Ankylosaurus was the last of the ankylosaurids (armored dinosaurs) to evolve, and the biggest. It lived in the late Cretaceous Period, about 70-65 million years ago. Ankylosaurus and all the other dinosaurs (except birds) perished in the Cretaceous-Tertiary extinction, 65 million years ago. Among its contemporaries were the large meat-eating Tyrannosaurus, three-horned Triceratops, and duck-billed Edmontosaurus. Short of being flipped over, the Ankylosaurus was well protected from these predators, and could even defend itself with its club-like tail.