[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 - protozoa
       Subkingdom Biciliata
         1 Infrakingdom Rhizaria Cavalier-Smith, 2002
         2 Infrakingdom Excavata T. Cavalier-Smith, 2002 see Supergroup Excavata Cavalier-Smith, 2002
         3 Infrakingdom Alveolata Cavalier-Smith, 1991 see [unranked] Alveolata Cavalier-Smith, 1991
         4 ?Phylum Apusozoa Cavalier-Smith, 1997 see Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
         5 ?Phylum Heliozoa Haeckel, 1866 see Subphylum Heliozoa Haeckel (1866)