portrait of dimetrodon on white background

age animal antique archaeology baby background beast big biology bone carnivore cretaceous death digging dimetrodon dino dinosaur ecology egg engraved engraving enormous etching extinct family fossil gigantic head herbivore history horn horned isolated jurassic killer mesozoic model paleontology protoceratops rendering scary science skeleton skull species strong styracosaur triassic triceratops white wildlife zoology