eukaryotes see Domain Eukaryota Chatton, 1925
   Kingdom Protozoa Goldfuss, 1818 [paraphyletic] - protozoa
     Subkingdom Sarcomastigota Cavalier-Smith, 1983 [paraphyletic] see [unranked] dorsates Cavalier-Smith, 2021
       Phylum Amoebozoa Lühe, 1913
         Subphylum Conosa Cavalier-Smith, 1998 see Infraphylum Conosa Cavalier-Smith, 1998
           Infraphylum Archamoebae Cavalier-Smith, 1983 [monotypic] see Class Archamoebea Cavalier-Smith, 1983
             Class Archamoebea Cavalier-Smith, 1983
               ?Order Rhizomastigida Doflein, 1916 [monotypic]
                 Family Rhizomastigidae Cavalier-Smith, ined. [monotypic] see Family Rhizomastigidae Cavalier-Smith, 2012
                   Genus Rhizomastix Aléxéieff, 1911