living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi
               Subclass Actinopterygii Woodward, 1891 - ray-finned fishes see Class Actinopterygii Woodward, 1891
                 Order Scorpaeniformes Bloch, 1789 - mail-cheeked fishes
                   Suborder Cottoidei Berg, 1940
                     1 Family Icelidae see Family Cottidae Bonaparte, 1832
                     2 Family Cottidae Bonaparte, 1832 - sculpins
                     3 Family Cottocomephoridae see Family Cottidae Bonaparte, 1832
                     4 Family Comephoridae - Baikal oilfishes
                     5 Family Normanichthyidae
                     6 Family Cottunculidae see Family Psychrolutidae
                     7 Family Psychrolutidae - fatheads
                     8 Family Agonidae Swainson, 1839 - poachers
                     9 Family Cyclopteridae Bonaparte, 1831