Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade natates Cavalier-Smith, 2021
                   Clade photaria Cavalier-Smith, 2021
                     Clade eucorta Cavalier-Smith, 2021
                       Superkingdom Corticata Lankester, 1878 - corticates
                         Kingdom Chromista Caval.-Sm. (1981) - chromists
                           Subkingdom Harosa Cavalier-Smith, 2010
                             [halvaria Cavalier-Smith, 2010] see Infrakingdom Halvaria Cavalier-Smith, 2010
                               [Infrakingdom Heterokonta Caval.-Sm. (1986) - heterokonts] see Superphylum Heterokonta Caval.-Sm. (1986)
                                 [Superphylum Sagenista Caval.-Sm. (1995)] see Subphylum Sagenista Cavalier-Smith, 1995
                                   [Phylum Sagenistaᵀ Caval.-Sm. (1995)] see Subphylum Sagenista Cavalier-Smith, 1995
                                     [Subphylum Bicoecia Caval.-Sm. (1989)] see Phylum Bigyra Cavalier-Smith, 1998
                                       1 [Class Bicoeceaᵀ Caval.-Sm. (1986)] see Class Bicosoecophyceae Loeblich III & Loeblich (1979), nom. nud.
                                       1.0 [Class "Bicosoecea" Caval.-Sm. (1986), orth. inval.] see Class Bikosea Cavalier-Smith, 2013