life
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Empire Eukaryota (Chatton, 1925)
 see Domain Eukaryota Chatton, 1925
    
 Superkingdom Metakaryota
 see Domain Eukaryota Chatton, 1925
      
 Kingdom Protozoa Goldfuss, 1818 - protozoa
        
 Subkingdom Dictyozoa Cavalier-Smith, 1991
          
 Branch Bikonta Cavalier-Smith, 1993
            
 Infrakingdom Neozoa Cavalier-Smith, 1993
              
 Parvkingdom Mesozoa van Beneden, 1876 [monotypic]
                
 Phylum Mesozoa van Beneden, 1876
 see [unranked] Mesozoa van Beneden, 1876
                  
 Class Rhombozoa van Beneden, 1876
 see Phylum Rhombozoa Krohn, 1839
                    
 Order Dicyemida van Beneden, 1876