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 Mollusca Linnaeus, 1758 - molluscs
           Class Cephalopoda Cuvier, 1795 - cephalopods
             Subclass Coleoidea Bather, 1888
               Order Octopoda Leach, 1817 - octopuses
                 Suborder Incirrata Grimpe, 1917 see Suborder Incirrina Grimpe, 1916
                   01 Family Bolitaenidae Chun, 1911
                   02 Family Amphitretidae Hoyle, 1886
                   03 Family Vitreledonellidae Robson, 1932
                   04 Family Alloposidae Verrill, 1881
                   05 Family Idioctopodidae Taki, 1962
                   06 Family Octopodidae Rafinesque, 1815
                   07 Family Laetmoteuthidae see Family Cirroteuthidae Keferstein, 1866
                   08 Family Tremoctopodidae Tryon, 1879
                   09 Family Ocythoidae Gray, 1849
                   10 Family Argonautidae Lamarck, 1809