omeisaurus dinosaur river

age animal beak bird carnivore china claws creature dinosaur england epoch era evolution extinct flight flying gemmingi genus germany herbivore hunter illustration image jurassic lizard long mesozoic neck omeisaurus organism paleontology period picture predator prehistoric primeval primitive pterodactyl pterodactylus pterosaur reptile rhamphorhynchus river sauropod spain species tail tanzania teeth themes tianfuensis titanosaurus tree vertebrate wild wildlife wing