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 Chromista Caval.-Sm. (1981) - chromists
       Subkingdom Chromobiota Caval.-Sm. (1991)
         Infrakingdom Heterokonta Caval.-Sm. (1986) - heterokonts see Superphylum Heterokonta Caval.-Sm. (1986)
           Superphylum Gyrista Caval.-Sm. (1998)
             Phylum Bigyra Caval.-Sm. (1998) see Phylum Bigyra Cavalier-Smith, 1998
               Subphylum Pseudofungi Caval.-Sm. (1986) - pseudofungi see Phylum Pseudofungi Caval.-Sm. (1986)
                 Class Hyphochytrea Caval.-Sm. (1986), nom. inval.