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 Teuthoidea see Order Teuthida Naef, 1916
                 Suborder Oegopsida d'Orbigny, 1845 see Suborder Oegopsina Orbigny, 1845
                   Family Cranchiidae Prosch, 1847
                     1 Genus Mesonychoteuthis Robson, 1925 - colossal squid
                     2 Genus Bathothauma Chun, 1906
                     3 Subfamily Cranchiinae Prosch, 1847
                     4 Subfamily Taoniinae Pfeffer, 1912