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
                                     [crown] Class Demospongiae Sollas, 1885 - demosponges
                                       Subclass Lithistida Schmidt, 1870
                                         Order Spirosclerophorida Reid, 1963 [monotypic]
                                           01 Genus †Mastostroma Wu, 1991, incertae sedis
                                           02 Genus †Bothrochlaenia Pomel, 1872, incertae sedis
                                           03 Genus †Pachypsechia Pomel, 1872, incertae sedis
                                           04 Genus †Siphonocoelia Fromentel, 1860, incertae sedis
                                           05 Genus †Chlaenia Pomel, 1872, incertae sedis
                                           06 Genus †Cladilithosia Pomel, 1872, incertae sedis
                                           07 Genus †Cupulina Courtiller, 1861, incertae sedis
                                           08 Genus †Diacyparia Pomel, 1872, incertae sedis
                                           09 Genus †Discodermites Sollas, 1880, incertae sedis
                                           10 Genus †Elasmalimus Pomel, 1872, incertae sedis
                                           11 Genus †Hypothyra Pomel, 1872, incertae sedis
                                           12 Genus †Macandrewites Sollas, 1880, incertae sedis
                                           13 Genus †Ocellaria Ramond, 1801, incertae sedis
                                           14 Genus †Orosphecion Pomel, 1872, incertae sedis
                                           15 Genus †Ortmannispongia de Laubenfels, 1955, incertae sedis
                                           16 Genus †Physocalpia Pomel, 1872, incertae sedis
                                           17 Genus †Placojerea Pomel, 1872, incertae sedis
                                           18 Genus †Platispongia Courtiller, 1861, incertae sedis
                                           19 Genus †Podapsis Sollas, 1880, incertae sedis
                                           20 Genus †Polysiphoneudea Fromentel, 1860, incertae sedis
                                           21 Genus †Polystomiella Reid, 2004, incertae sedis
                                           22 Genus †Polythyra Pomel, 1872, incertae sedis
                                           23 Genus †Pterocalpia Pomel, 1872, incertae sedis
                                           24 Genus †Rhizostele Pomel, 1872, incertae sedis
                                           25 Genus †Ishadia Pomel, 1872, incertae sedis
                                           26 Genus †Plethosiphonia Pomel, 1872, incertae sedis
                                           27 Suborder Rhizomorina Zittel, 1895