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 Lyssacinosida Zittel, 1877
                                           Genus †Acanthaspongia McCoy, 1846
                                           Genus †Acanthocoryna Finks, 1960
                                           [Genus †Acanthospongia Roemer, 1861] see Genus Acanthaspongia McCoy, 1846
                                           Genus †Asthenospongia Rigby, King & Gunther, 1981
                                           Genus †Calathospongia Hall & Clarke, 1898
                                           Genus †Corticulospongia Rigby & Chatterton, 1989
                                           Genus †Endoplegma Finks, 1960
                                           Genus †Foerstella Ruedemann, 1925
                                           Genus †Mattaspongia Rigby, 1970
                                           Genus †Palaeosaccus Hinde, 1893
                                           [Genus Regardrella]
                                           [Genus "Rosella" orth. inval.] see Genus Rossella Carter, 1872
                                           Genus †Testispongia
                                           Genus †Valospongia Rigby, 1983
                                           01 ?Genus †Pyritonema McCoy, 1850
                                           02 Genus †Opeamorphus de Laubenfels, 1955, incertae sedis
                                           03 Genus †Calycomorpha Bodzioch, 1993, incertae sedis
                                           04 Genus †Krainerella Krainer & Mostler, 1992, incertae sedis
                                           05 Genus †Trimonactinophora Wu & Xiao, 1989, incertae sedis
                                           06 Genus †Gomphites Carter, 1871, incertae sedis
                                           07 Genus Clathrochone Tabachnick, 2002, incertae sedis
                                           08 Genus Hyaloplacoida Tabachnick, 1989, incertae sedis
                                           09 Family Euplectellidae Gray, 1867
                                           09.1.0 [Family Placoplegmidae de Laubenfels, 1936] see Subfamily Euplectellinae Gray, 1867
                                           09.2.0 [Family Alcyoncellidae de Laubenfels, 1936] see Subfamily Corbitellinae Gray, 1872
                                           10 Family Rossellidae Schulze, 1885
                                           10.1.0 [Family Caulophacidae Schulze, 1886] see Subfamily Lanuginellinae Gray, 1872
                                           10.3.0 [Family Sympagellidae de Laubenfels, 1936] see Subfamily Lanuginellinae Gray, 1872
                                           11 Family Leucopsacidae Ijima, 1898
                                           11.0 [Family Leucopsacadidae Ijima, 1903] see Family Leucopsacidae Ijima, 1898
                                           12 Family †Stauractinellidae de Laubenfels, 1955 [monotypic]
                                           13 Superfamily †Crepospongioidea Finks & Rigby, 2004 [monotypic]
                                           14 Superfamily †Brachiospongioidea Beecher, 1889
                                           15 Superfamily †Lumectospongioidea Rigby & Chatterton, 1989 [monotypic]