2012 absurd_res acanthodian actinopterygian ambiguous_gender aquatic arrow_(symbol) black_eyes blue_body brian_choo chondrichthyan cladogram creative_commons english_text feral fin fish gnathostome guiyu_(genus) hi_res jing_lu liantao_jia lobe-finned_fish min_zhu murrindalaspis open_mouth osteichthyan pelvic_fins phylogenetic_tree placoderm prehistoric_species psarolepis qingming_qu simple_background technical_illustration text tuo_qiao wenjin_zhao white_background xiaobo_yu
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