Protozoa Goldfuss, 1818 - protozoans
   Phylum Ascetospora Sprague, 1979 - ascetosporans see Class Ascetosporea T. Cavalier-Smith, 2002
   01 †Acritarcha Evitt, 1963 - acritarchs
   02 †Chitinozoa Eisenack, 1931 - chitinozoans
   03 Phylum Sarcomastigophora Honigberg & Balamuth, 1963
   04 Phylum Labyrinthomorpha - labyrinthomorphans see [unranked] labyrinthulids
   05 Phylum Apicomplexa Levine, 1970 see Infraphylum Apicomplexa Levine, 1970
   06 Phylum Microspora Sprague, 1977 - microsporans see Phylum Microsporida Balbiani, 1882
   08 Phylum Myxozoa Grassé, 1970, incertae sedis - myxozoans see Subphylum Myxozoa Grassé, 1970
   09 Phylum Ciliophora Doflein, 1901 - ciliates
   10 Phylum Hemimastigophora Foissner, Blatterer & Foissner, 1988