animal_genitaliaankylosaurianankylosauridankylosaurusanthroanusbeakbig_penisblue_penisclawsclubbed_taildinosaurerectiongenital_slitgenitalsgrey_bodygrey_skinlyingmaleon_backornithischianpenisprehistoric_speciesreptilescalieslightly_chubbysolospikesspikes_(anatomy)spread_legsspreadingtailtakamatsu-kunthyreophoranweapon_tail