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 Lyromonadea Cavalier-Smith, 1993
                   Order Lyromonadida Cavalier-Smith, 1993 - lyromonads
                     1 Genus Psalteriomonas Broers, Stumm, Vogels & Brugerolle, 1990
                     2 Genus Sawyeria O'Kelly et al., 2003
                     3 Genus Harpagon Pánek, Silberman, Yubuki, Leander & Cepicka, 2012
                     4 Genus Lyromonas Cavalier-Smith, 1993
                     5 Genus Oramoeba De Jonckheere, Baumgartner, Eberhardt, Opperdoes & Stetter, 2011
                     6 Genus Heteramoeba Droop, 1962