Facts

Ankylosaurus had a bumpy back of armor which protected him from his predators. Predators could not penetrate his tough back. He also had a very powerful tail. Ankylosaurus was about 18-20 feet long and six foot high. Herbivore. Apatosaurus means "deceptive lizard" It was about 18 m long and weighed about 30 tons. It had a very small brain. Herbivore. This was one of the largest dinosaurs. It was 25m long and weighed about 80 tons. Brachiosaurus means "arm-lizard" Herbivore.This is actually a Apatosaurus. It was mistakenly named in the 1870's. Now most museums do not use the name "brontosaurus". Herbivore. Dimetrodon looks like he has a sail on his back. The Dimetrodon is a meat-eating animal that lived during the Permian Period, roughly 280 million year ago. The Dimetrodon lived before the dinosaurs and is not really a dinosaur. It was a mammal-like reptile, an ancestor of the mammals. Carnivore. Pterodactyl lived in flocks and lived in trees or caves. The ate insects and lived near the sea. The smallest of the Pterosaurs. Carnivore.