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 Semiconosia Cavalier-Smith, 2012
             Parvphylum Variosia Cavalier-Smith, 2012 [monotypic] see Class Variosea Cavalier-Smith, 2004
               Class Variosea Cavalier-Smith, 2004 [paraphyletic?]
                 Order Holomastigida Lauterborn, 1895 [monotypic]
                   Family Multiciliidae Poche, 1913 [monotypic]
                     Genus Multicilia Cienkowski, 1881