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 Neozoa Cavalier-Smith, 1993 [paraphyletic] see Kingdom Protozoa Goldfuss, 1818
         Infrakingdom Sarcomastigota Cavalier-Smith, 1983 [paraphyletic] see Subkingdom Sarcomastigota Cavalier-Smith, 1983
           Phylum Cercozoa Cavalier-Smith, 1998
             Subphylum Monadofilosa Cavalier-Smith, 1997
               Class Athalamea Haeckel, 1862
                 Order Biomyxida see Order Aconchulinida de Saedeleer, 1934
                   Genus Penardia Cash, 1904