Help Go back to the office Plateosaurus Coelophysis Dilophosaurus Scelidosaurus Allosaurus Apatosaurus Brachiosaurus Camarasaurus Barosaurus Compsognathus Diplodocus Kentrosaurus Stegosaurus Iguanodon Baryonyx Hypsilophodon Sauropelta Psittacosaurus Deinonychus Segnosaurus Protoceratops Oviraptor Maiasaur Triceratops Tyrannosaurus Rex Pachycephalosaurus Centrosaurus Corythosaurus Lambeosaurus Styracosaurus The Cretaceous Period The Jurassic Period The Triassic Period