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 natates Cavalier-Smith, 2021
                  
 Clade photaria Cavalier-Smith, 2021
                    
 Clade eucorta Cavalier-Smith, 2021
                      
 Superkingdom Corticata Lankester, 1878 - corticates
                        
 Kingdom Chromista Caval.-Sm. (1981) - chromists
                          
 Subkingdom Harosa Cavalier-Smith, 2010
                            
 Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                              
 Infrakingdom Rhizaria Cavalier-Smith, 2002
                                
 Phylum Cercozoa Cavalier-Smith, 1998
                                  
 Subphylum Endomyxa T. Cavalier-Smith, 2002
                                    
 Class Ascetosporea T. Cavalier-Smith, 2002
                                      
 Order Haplosporida M. Caullery & F. Mesnil, 1899
                                        
 1 ?Genus Bonamia Pichot et al., 1980 [monotypic]
                                        
 2 ?Genus Mikrocytos Farley, Wolf & Elston, 1988
                                        
 3 Family Haplosporidiidaeᵀ Sprague, 1979
                                        
 4 Family Urosporidiidae [monotypic]