Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         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
                     Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                         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
                                   Class †Archaeocyatha Bornemann, 1884
                                     Order †Ajacicyathida Bedford & Bedford, 1939
                                       Suborder †Erismacoscinina Debrenne, Rozanov & Zhuravlev, 1989
                                         Superfamily †Kasyricyathoidea Zhuravleva, 1961
                                           1 Family †Agyrekocyathidae Konyushkov, 1967 [monotypic]
                                           2 Family †Xestecyathidae Debrenne, Rozanov & Zhuravlev, 1989 [monotypic]
                                           3 Family †Kasyricyathidaeᵀ Zhuravleva, 1961 [monotypic]
                                           4 Family †Membranacyathidae Debrenne, Zhuravlev & Kruse, 2002 [monotypic]