eukaryotes 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 Ciliomyxa Cavalier-Smith, 1993
             Phylum Opalozoa Cavalier-Smith, 1992 see Subphylum Opalozoa Cavalier-Smith, 1992
               Subphylum Kinetomonada Cavalier-Smith, 1993
                 Class Kinetomonadea Cavalier-Smith, 1993
                   1 Order Histionida Cavalier-Smith, 1993 see Suborder Histionina Cavalier-Smith, 1993
                   2 Order Heliomonadida Cavalier-Smith, 1993