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
                                  
 Silicispongia Schmidt, 1862
                                    
 Class Demospongiae Sollas, 1885 - demosponges
                                      
 Subclass Lithistida Schmidt, 1870
                                        
 Order Tetralithistida Lagneau-Hérenger, 1962
                                          
 Suborder Tetracladina Zittel, 1878
                                            
 Family Theonellidae Lendenfeld, 1903
                                              
 Subfamily Theonellinaeᵀ von Lendenfeld, 1903
                                                
 01 ?Genus †Placoscytus Schrammen, 1910
                                                
 02 Genus †Colossolacis Schrammen, 1910
                                                
 03 Genus †Rhoptrum Schrammen, 1910
                                                
 04 Genus †Leiophyllum Schrammen, 1924
                                                
 05 Genus †Stellettites Carter, 1871
                                                
 06 Genus Discodermia du Bocage, 1869
                                                
 07 Genus Theonellaᵀ Gray, 1869
                                                
 08 Genus Racodiscula Zittel, 1878
                                                
 09 Genus Siliquariaspongia Hoshino, 1981
                                                
 10 Genus Manihinea Pulitzer-Finali, 1993