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]
           neomura Cavalier-Smith, 1987
             Eukaryota Chatton, 1925 - eukaryotes
               discaria Cavalier-Smith, 2021
                 natates Cavalier-Smith, 2021
                   photaria Cavalier-Smith, 2021
                     eucorta Cavalier-Smith, 2021
                       [node-based clade] Corticata Lankester, 1878 - corticates
                         Chromista Caval.-Sm. (1981) - chromists
                           Harosa Cavalier-Smith, 2010
                             [crown clade] Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                               Halvaria Cavalier-Smith, 2010
                                 Heterokonta Caval.-Sm. (1986)
                                   Ochrophyta Caval.-Sm. (1995)
                                     Phaeista Caval.-Sm. (1995)
                                       Marista Caval.-Sm. (2006)
                                         Fucistia Caval.-Sm. (1995)
                                           Phaeophyceae Hansgirg (1886) - brown algae
                                             Fucales Kylin
                                               Cystoseiraceae De Toni (1891)
                                                 01 Acrocarpia J.E. Areschoug (1854)
                                                 02 Acystis Schiffner (1934)
                                                 03 Bifurcaria Stackhouse (1809)
                                                 04 Bifurcariopsis Papenfuss (1940)
                                                 05 Carpoglossum Kützing (1843)
                                                 06 Caulocystis J.E. Areschoug (1854)
                                                 07 Coccophora Grev. (1830)
                                                 08 Cystophora J.Agardh (1841), nom. cons.
                                                 09 Cystoseira C.Agardh (1820), nom. cons.
                                                 10 Halidrys Lyngbye (1819), nom. cons.
                                                 11 Hormophysa Kützing (1843)
                                                 12 Landsburgia Harv., in Hook.f. (1855)
                                                 13 Myriodesma J. Decaisne (1841)
                                                 14 Scaberia Grev. (1830)
                                                 15 Stolonophora M. Nizamuddin (1969)