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 Milleporina - millepore hydrocorals see Suborder Capitata Kühn, 1913 () sensu stricto
               Family Milleporidae Fleming, 1828
                 Genus Millepora Linnaeus, 1758