megaraptor (megaraptor namunhuaiquii) skeleton

allosauroid america animal argentina bones carnivore carnivorous claws creature cretaceous dinosaur dragon evolution extinct extinction fossils giant gigantic grand hunter isolated isolation jurassic large lizard megaraptor monster museum namunhuaiquii neovenatorid paleontology patagonia patagonian period powerful predator prehistoric raptor reptile restoration restored sickle skeleton skull stare teeth terrible theropod theropoda white