Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Biota
           "neomura"
             Domain Eukaryota Chatton, 1925 - eukaryotes
               "neokaryotes" - mitochondrial eukaryotes
                 "neozoa"
                   "scotokaryotes" Cavalier-Smith, 1999
                     "podiates" Cavalier-Smith, 2013
                       Amorphea Adl et al., 2012
                         Opisthokonta Cavalier-Smith, 1987
                           Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                             filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
                               Kingdom Animalia Linnaeus, 1758 - animals
                                 Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004 [nom. cl. nov.]
                                   [plesion, p.p.] Phylum Cnidaria Hatschek, 1888 - cnidarians
                                     Subphylum Medusozoa Petersen, 1979
                                       Class Hydrozoa Owen, 1843
                                         "A-forms"
                                           Order Anthoathecatae
                                             Suborder Capitata
                                               1 Family Acaulidae
                                               1 Family Candelabridae
                                               1 Family Cladocorynidae
                                               1 Family Halocordylidae
                                               1 Family Hydridae Dana, 1846
                                               1 Family Polyorchidae
                                               1 Family Protohydridae Allman, 1888
                                               1.1 Family Corynidae Johnston, 1836
                                               1.1 Family Zancleidae
                                               1.2 Family Pennariidae
                                               1.4 Family Corymorphidae
                                               1.5 Family Tubulariidae
                                               1.6 Family Margelopsidae
                                               1.7 Family Cladonematidae
                                               1.8 Family Eleutheriidae
                                               2 Family Moerisiidae
                                               3 Family Milleporidae
                                               4.1 Family Porpitidae Brandt, 1835
                                               4.2 Family Velellidae Brandt, 1835