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 Axostylaria Grassé, 1952 see Class Anaeromonadea Cavalier-Smith, 1997
             1 Genus Oxymonas Janicki, 1915
             2 Genus Pyrsonympha Leidy, 1877