sauroposeidon dinosaur herd

america animal bird carnivore carnivorous claws creature cretaceous dinosaur era evolution extinct extinction flight flock flying genus herbivore herbivorous herd illustration image lizard longiceps nature north oklahoma organism paleontology period picture predator prehistoric primeval primitive proteles pteranodon pterodactyl pterodactyloid pterodactylus pterosaur quadruped reptile sauropod sauroposeidon species teeth themes titanosaur vertebrate wild wildlife wing