[living organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryota Whittaker & Margulis, 1978 see Domain Eukaryota Chatton, 1925
     Kingdom Chromista Caval.-Sm. (1981) - chromists
       Subkingdom Harosa Cavalier-Smith, 2010
         Infrakingdom Halvaria Cavalier-Smith, 2010
           Superphylum Heterokonta Caval.-Sm. (1986)
             Phylum Bigyra Cavalier-Smith, 1998
               1 Class Bikosea Cavalier-Smith, 2013
               2 Class Blastocystea Zierdt, 1978 [monotypic]
               3 Class Nanomonadea Cavalier-Smith, 2013 [monotypic]
               4 Class Opalinea Wenyon, 1926
               5 Class Labyrinthulea Olive ex Cavalier-Smith, 1986
               6 Class Placididea Moriya, Nakayama & Inouye, 2002 [monotypic]