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 Cnidaria Hatschek, 1888 - cnidarians
           Class Hydrozoa Owen, 1843
             Order Siphonophora Eschscholtz, 1829 - siphonophorans
               Suborder Physonectae Haeckel, 1888 see Suborder Physonectida
                 1 Family Agalmidae
                 2 Family Apolemiidae Huxley, 1859
                 3 Family Athorybiidae
                 4 Family Forskaliidae Haeckel, 1888
                 5 Family Physophoridae Eschscholtz, 1829
                 6 Family Pyrostephidae Moser, 1925
                 7 Family Rhodaliidae Haeckel, 1888