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 Spiralia Schleip, 1929
                                          
 Clade Platytrochozoa Struck, Wey-Fabrizius, Golombek, Hering, Weigert, Bleidorn, Klebow, Iakovenko, Hausdorf, Petersen, Kück, Herlyn & Hankeln 2014
                                            
 Clade Lophotrochozoa Halanych, Bacheller, Aguinaldo, Liva, Hillis & Lake 1995 - lophotrochozoans
                                              
 Clade Trochozoa Beklemischev, 1944 - trochozoans
                                                
 Clade Tetraneuralia Wanninger 2009
                                                  
 Phylum Mollusca Linnaeus, 1758 - molluscs
                                                    
 Subphylum Conchifera Gegenbauer, 1878
                                                      
 Ganglioneura Rudophi, 1812
                                                        
 Clade Pleistomollusca Kocot, Cannon, Todt, Citarella, Kohn, Meyer, Santos, Schander, Moroz, Lieb & Halanych 2011
                                                          
 Class Bivalvia Linnaeus, 1758 - bivalves
                                                            
 Subclass Autobranchia Grobben, 1894
                                                              
 Superorder Heteroconchia Gray, 1854
                                                                
 Clade Palaeoheterodonta Newell, 1965
                                                                  
 Order Unionida Gray, 1854
                                                                    
 Superfamily Unionoideaᵀ Rafinesque, 1820
                                                                      
 Family Unionidaeᵀ Rafinesque, 1820 - pearly mussels
                                                                        
 [Subfamily Anodontinae Rafinesque, 1820]
 see Tribe Anodontini Rafinesque, 1820
                                                                          
 01 Genus Alasmidonta Say, 1818
                                                                          
 02 Genus Amuranodonta Moskvicheva, 1973
                                                                          
 03 Genus Anodontaᵀ Lamarck, 1799
                                                                          
 04 Genus Anodontoides Baker, 1898
                                                                          
 05 Genus Arcidens Simpson, 1900
                                                                          
 06 Genus Arkansia Ortmann & Walker, 1912
                                                                          
 07 Genus Buldowskia Moskvicheva, 1973
                                                                          
 08 Genus Cristaria Schumacher, 1817
                                                                          
 09 Genus Cristariopsis Moskvicheva, 1973
                                                                          
 10 Genus Lasmigona Rafinesque, 1831
                                                                          
 11 Genus Lepidodesma Simpson, 1896
                                                                          
 12 Genus Oguranodonta Kuroda & Habe, 1987
                                                                          
 13 Genus Pegias Simpson, 1900
                                                                          
 14 Genus Pilsbryoconcha Simpson, 1900
                                                                          
 15 Genus Pseudanodonta Bourguignat, 1876
                                                                          
 16 Genus Simpsonella Cockerell, 1903
                                                                          
 16.0 [Genus Dalliella Simpson, 1900, nom. illeg.]
 see Genus Simpsonella Cockerell, 1903
                                                                          
 17 Genus Simpsoniconcha Frierson, 1914
                                                                          
 18 Genus Strophitus Rafinesque, 1820