[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Epitheliozoa Ax, 1996
       Eumetazoa Bütschli, 1910 - eumetazoans
         Phylum Cnidaria Hatschek, 1888 - cnidarians
           Medusozoa Petersen, 1979 see Subphylum Medusozoa Petersen, 1979
             Hydrozoa Owen, 1843