amargasaurus dinosaurs

aggressive amargasaurus animal apex argentina bird carnivore carnivorous cazaul china claws creature cretaceous dinosaur era evolution extinct extinction fierce flight flying herbivore herbivorous illustration image lizard longirostris organism paleontology picture predator prehistoric primeval primitive pterodactyl pterodactylus pterosaur quadruped reptile sauropod species teeth themes theropod titanosaur vertebrate wing zhenyuanopterus