[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
         Infrakingdom Excavata T. Cavalier-Smith, 2002 see Supergroup Excavata Cavalier-Smith, 2002
           1 Phylum Loukozoa Cavalier-Smith, 1999
           2 Phylum Percolozoa Cavalier-Smith, 1992
           3 Phylum Euglenozoa Cavalier-Smith, 1981
           4 Phylum Metamonada Grassé, 1952