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
                                 Phylum Porifera Grant, 1836 [coordinate rank] - sponges
                                   Silicispongia Schmidt, 1862
                                     Class Hexactinellida Schmidt, 1870 - hexactinellids
                                       Subclass Hexasterophora Schulze, 1886
                                         [Order Hexactinosa Schrammen, 1903] see Order Hexactinosida Schrammen, 1903
                                           Genus †Aulacosia Rauff, 1933
                                           [Genus †Aulodomus Schrammen, 1936] see Subgenus Aulodomus Schrammen, 1936
                                           Genus †Belonisia Rauff, 1933
                                           Genus †Botryosella Schrammen, 1912
                                           Genus †Caesaria Quenstedt, 1858
                                           Genus †Cyrtobolia Pocta, 1883
                                           Genus †Diphyllospira Herrmann-Degen, 1980
                                           Genus †Ecblastesia Rauff, 1933
                                           Genus †Eutactostomium Herrmann-Degen, 1980
                                           [Genus †Koleostoma Regnard, 1925] see Subgenus Koleostoma Regnard, 1925
                                           Genus †Laocaetis
                                           Genus †Mimeticosia Rauff, 1933
                                           Genus †Nitidus de Laubenfels, 1955
                                           Genus †Oxyrhizium Schrammen, 1912
                                           Genus †Palaeostauronema
                                           Genus †Paracraticularia Schrammen, 1936
                                           Genus †Periplectum Rauff, 1933
                                           Genus †Plecteurette
                                           Genus †Polyosepia
                                           Genus †Polystigmatium Schrammen, 1912
                                           Genus †Polysyge
                                           Genus †Proeurete Schrammen, 1902
                                           Genus †Psephosyllogus Schrammen, 1936
                                           Genus †Rhopalicna
                                           Genus †Stromatidium Girty, 1908
                                           Genus †Synaulia Pocta, 1883
                                           Genus †Thyroidium de Laubenfels, 1955
                                           17 [Family Euryplegmatidae de Laubenfels, 1955 [monotypic]] see Family Aulocalycidae Ijima, 1927
                                           18.n [Suborder Clavularia Schulze, 1885]
                                           27.3.n [Suborder Scopularia Schulze, 1885]