Reptiles of the mesozoic era: cold-blooded vertebrate animals, with or without legs. Their skin is covered with scales and they are usually oviparous.
Brontosaurus: huge herbivorous dinosaur of the mesozoic era.
Stegosaurus: large, heavy herbivorous dinosaur of the mesozoic era, with a body covered with protective armour.
Pterodactyl: large flying dinosaur of the mesozoic era.
Tyrannosaurus: large, tall carnivorous dinosaur of the mesozoic era.