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
                                
 Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
                                  
 Subkingdom Bilateria Hatschek, 1888 - bilaterians
                                    
 Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
                                      
 Infrakingdom Protostomia Grobben, 1908
                                        
 Superphylum Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake, 1997
                                          
 Panarthropoda Nielsen, 1995 - panarthropods
                                            
 Tactopoda Budd, 2001
                                              
 Phylum Arthropoda Siebold, 1848 - arthropods
                                                
 Euarthropoda
                                                  
 Antennulata
                                                    
 Subphylum Mandibulata Snodgrass, 1938
                                                      
 Infraphylum Pancrustacea Zrzavý & Štys, 1997
                                                        
 Oligostraca
                                                          
 Class Ostracoda Latreille, 1802 - ostracods
                                                            
 Genus †Acrossula Kummerow, 1953
                                                            
 Genus †Adamczakia Schallreuter, 1987
                                                            
 Genus †Anahuacia Grundel, 1972, nom. illeg.
                                                            
 Genus †Anfedatia Gramm, 1988
                                                            
 Genus †Bennviaspis
                                                            
 Genus †Borodiella Olteanu, 1986
                                                            
 Genus †Boucekites Pribyl, 1953
                                                            
 Genus †Brachycytheropteron Kuznetsova, 1960
                                                            
 Genus †Budnianella Boucek, 1936
                                                            
 Genus †Celechovites Pokorný, 1950
                                                            
 Genus †Ceratocypris Poulsen, 1934
                                                            
 Genus †Craspedopyxion Jaanusson, 1957
                                                            
 Genus †Crescenticythere Ayress, 1993
                                                            
 Genus †Gelidicella Schallreuter, 1984
                                                            
 Genus †Gerubiella Gramm, 1988
                                                            
 Genus †Ginella Ivanova, 1960
                                                            
 Genus †Gipsella Egorov, 1950
                                                            
 Genus †Golcondella Croneis & Gale, 1938
                                                            
 Genus †Hameaschmidtella
                                                            
 Genus †Hisingeria Abushik, 1990, nom. illeg., incertae sedis
                                                            
 Genus †Huanghuaella Sun, 1987
                                                            
 Genus †Hupehella Hou, 1955
                                                            
 Family †Indivisiidae Egorov, 1954
                                                            
 Genus †Jamischjewskya
                                                            
 Genus †Kimsella Salas, Vannier & Williams, 2007
                                                            
 Genus †Kuresaaria Adamczak, 1967
                                                            
 Genus †Lublinella Nehring-Lefeld, 1985
                                                            
 Genus †Maghrebeis Majoran, 1987
                                                            
 Genus †Marginotimorites Bless, 1987
                                                            
 Order †Metacopida Sylvester-Bradley, 1961
                                                            
 Genus †Microcosmia Crane, 1965
                                                            
 Genus †Mytoa Schallreuter & Krůta, 1988
                                                            
 Genus †Navicularina Melnikova, 1986
                                                            
 Genus †Neochilina Matern, 1929
                                                            
 Genus †Netzkaina Gramm, 1988
                                                            
 Genus †Novakina Boucek, 1936
                                                            
 Genus †Ochesaarina Netzkaya, 1960
                                                            
 Genus †Paleocythere Tolmachoff, 1926
                                                            
 Genus †Proeditia Buschmina, 1979
                                                            
 Genus †Pseudonodellina Polenova, 1955
                                                            
 Genus †Pulvillites Öpik, 1937
                                                            
 Genus †Pyxiprimitia Swartz, 1936
                                                            
 Genus †Reversoparaparchites Gorak, 1985
                                                            
 Genus †Sigillium Kuznetsova, 1961
                                                            
 Genus †Sinoprimitia Hou, 1953
                                                            
 Genus †Spytihnevites Pribyl, 1986
                                                            
 Genus †Tatariella Mishina, 1967
                                                            
 Genus †Tetrasulcata Matern, 1930
                                                            
 Genus †Torusilina Melnikova, 1986
                                                            
 Genus †Trapezisylthere Schallreuter, 1987
                                                            
 Genus †Uthoerina Schallreuter, 1987
                                                            
 Genus †Uvonhactia Schallreuter, 1988
                                                            
 Genus †Venzavella Gailite, Rybnikova & Ul'st, 1967
                                                            
 Genus †Vitella Schallreuter, 1964
                                                            
 1 Genus Pyrocypris Müller, 1890
                                                            
 2 Order †Beyrichiocopida Pokorny, 1953
                                                            
 3 Genus †Myodoprimigenia Gabbott, Siveter, Aldridge & Theron, 2003
                                                            
 4 Subclass Myodocopa Sars, 1866
                                                            
 5 Subclass Podocopa Sars, 1866