life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Empire Eukaryota (Chatton, 1925) see Domain Eukaryota Chatton, 1925
     Kingdom Protozoa Goldfuss, 1818 [paraphyletic] - protozoa
       Subkingdom Archezoa Cavalier-Smith, 1983 [paraphyletic] see Infrakingdom Archezoa Cavalier-Smith, 1983
         Phylum Metamonada Grassé, 1952
           Subphylum Eopharyngia Cavalier-Smith, 1993 see Superclass Eopharyngia (Cavalier-Smith, 1993) Cavalier-Smith, 2003
             1 Genus Giardia Künstler, 1882
             2 Genus Hexamita Dujardin, 1838
             3 Genus Trepomonas Dujardin, 1841
             4 Genus Chilomastix Alexeieff, 1910