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 Sepioidea see Order Sepiida Gray, 1849
                 1 Family Spirulidae Rafinesque, 1815
                 2 Family Sepiidae Lamarck, 1809
                 3 Family Sepiadariidae Fischer, 1882
                 4 Family Sepiolidae Leach, 1817
                 5 Family Idiosepiidae Appellöf, 1898