[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 Hydroida Johnston, 1836 - hydroids see Order Anthoathecatae
               Suborder Leptomedusae see Order Leptothecatae
                 Genus Obelia Péron & Lesueur, 1810
                 Genus Plumularia Lamarck, 1816
                 Genus Polyorchis A. Agassiz, 1862
                 Genus Sertularia Linnaeus, 1758