[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 Radiata Linnaeus, 1758 see Subkingdom Radiata (Linnaeus, 1758) Cavalier-Smith, 1983
         Phylum Cnidaria Hatschek, 1888 - cnidarians
           Class Hydrozoa Owen, 1843
             Order Trachylina Haeckel, 1879 - trachyline medusae
               1 Suborder Trachymedusae Haeckel, 1866
               2 Suborder Narcomedusae Haeckel, 1879