2022 ambiguous_gender ankylosaurian ankylosaurid ankylosaurus clubbed_tail dinosaur extinct feral graphite_(artwork) hi_res loaf lying monochrome mouth_closed on_front ornithischian osteoderms pencil_(artwork) prehistoric_species quadruped reptile scalie shaded shadow simple_background simple_shading solo spikes spikes_(anatomy) tail tan_background thomas_strimpel thyreophoran traditional_media_(artwork) weapon_tail