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ambiguous_gender antediluvian beak biped bipedal_feral claws dinosaur english_text facial_horn feral green_body green_scales hand_spike hi_res horn iguanodon iguanodontian iguanodontid mario_lanzas nose_horn number open_mouth ornithischian ornithopod prehistoric_species reptile scales scalie solo spikes spikes_(anatomy)text time_lapse time_period year