pinacosaurus dinosaur walking straight ahead - 3d render

animal illustration pinacosaurus prehistoric dinosaur cretaceous paleontology primitive armor extinct isolated white background herbivore reptile armored jurassic plate spike tail 3d era ankylosaur grangeri primeval walk walking quadruped herbivorous mongolia nature dino extinction lizard species china creature horn organism vertebrate ankylosaurid ankylosaurus ancient covered spiky render digital rendering graphic