Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade dorsates Cavalier-Smith, 2021
                   Clade podiates Cavalier-Smith, 2012
                     [crown] Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       [crown] Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                         [crown] Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
                           Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                             Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
                               Kingdom Animalia Linnaeus, 1758 - animals
                                 Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
                                   [crown] Phylum Cnidaria Hatschek, 1888 [coordinate rank] - cnidarians
                                     [crown] Subphylum Medusozoa Petersen, 1979
                                       [crown] Class Hydrozoa Owen, 1843
                                         "A-forms"
                                           Order Anthoathecatae
                                             Suborder Filifera Kühn, 1913
                                               Family Ptilocodiidae Coward, 1909
                                               1.1 Family Clavidae McCrady, 1859
                                               1.2 Family Hydractiniidae L. Agassiz, 1862
                                               1.3 Family Cytaeidae L. Agassiz, 1862
                                               1.4 Family Rathkeidae Russell, 1953
                                               1.5 Family Bougainvilliidae Lütken, 1850
                                               1.6 Family Pandeidae Haeckel, 1879
                                               1.7 Family Eudendriidae L. Agassiz, 1862
                                               2 Family Proboscidactylidae Hand & Hendrickson, 1950
                                               3 Family Stylasteridae Gray, 1847