eukaryotes see Domain Eukaryota Chatton, 1925
   Kingdom Protozoa Goldfuss, 1818 [paraphyletic] - protozoa
     Subkingdom Natozoa Cavalier-Smith, 2021 [paraphyletic]
       Infrakingdom Eozoa Cavalier-Smith, 1997 see Clade Discoba Simpson 2009
         Superphylum Discicristata Cavalier-Smith, 1998
           Phylum Percolozoa Cavalier-Smith, 1992
             Subphylum Tetramitia Cavalier-Smith, 1993
               Infraphylum Eutetramitia Hanousková, Táborský & Čepička, 2018
                 Class Percolatea Cavalier-Smith, 2003
                   1 Genus Percolomonas T. Fenchel & D.J. Patterson, 1986
                   2 Genus Stephanopogon G. Entz, 1884