[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Protostomia Grobben, 1908 see Infrakingdom Protostomia Grobben, 1908
           Section Eucoelomata see Superphylum Eucoelomata
             Phylum Mollusca Linnaeus, 1758 - molluscs
               Class Cephalopoda Cuvier, 1795 - cephalopods
                 Subclass Coleoidea Bather, 1888
                   Order Decapoda Leach see Order Teuthoidea
                     Genus Architeuthis Steenstrup, 1857 - giant squid
                     Genus †Belemnites Gesner, 1758
                     Genus Loligo Lamarck, 1798 - long-finned squid
                     Genus Rossia Owen, 1834
                     Genus Sepia Linnaeus, 1758
                     Genus Spirula Lamarck, 1799