organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Eumetazoa Bütschli, 1910 - eumetazoans
       Phylum Cnidaria Hatschek, 1888 - cnidarians
         Genus Aiptasia Gosse, 1858
         Genus Aurelia Lamarck, 1816
         Genus Balanophyllia Wood, 1844
         Genus Calliactis Verrill, 1869
         Genus Hydra Linnaeus, 1758
         1 Class Anthozoa Ehrenberg, 1831
         2 Medusozoa Petersen, 1979 see Subphylum Medusozoa Petersen, 1979