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 Heteroscleromorpha Cárdenas, Pérez & Boury-Esnault, 2012
                                         Order Tetractinellida Marshall, 1876
                                           Suborder Astrophorina Sollas, 1888
                                             Family Pachastrellidae Carter, 1875
                                               0 [Subfamily Pachastrellinaeᵀ Carter, 1875] see Family Pachastrellidae Carter, 1875
                                               01 Genus †Youngella de Laubenfels, 1955, incertae sedis
                                               02 Genus †Acanthophora Sollas, 1873, incertae sedis
                                               03 Genus †Helobrachium Schrammen, 1910, incertae sedis
                                               04 Genus †Paropsites Pocta, 1884, incertae sedis
                                               05 Genus †Propachastrella Schrammen, 1910, incertae sedis
                                               06 Genus Triptolemma de Laubenfels, 1955
                                               06.0 [Genus Triptolemus Sollas, 1888, nom. illeg.] see Genus Triptolemma de Laubenfels, 1955
                                               07 Genus Acanthotriaena Vacelet, Vasseur & Lévi, 1976
                                               08 Genus Ancorella Lendenfeld, 1907
                                               09 Genus Brachiaster Wilson, 1925
                                               10 Genus Characella Sollas, 1886
                                               10.0 [Genus Neothenea de Laubenfels, 1934] see Genus Characella Sollas, 1886
                                               10.0 [Genus Yodomia Lebwohl, 1914] see Genus Characella Sollas, 1886
                                               11 Genus Lamellomorpha Bergquist, 1968
                                               12 Genus Nethea Sollas, 1888
                                               13 Genus Pachastrellaᵀ Schmidt, 1868
                                               n.1.0 [Genus Sphinctrella Schmidt, 1870, nom. illeg.] see Genus Sphincterella de Laubenfels, 1936
                                               x [Subfamily Halininae de Laubenfels, 1934]