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 Plantae Haeckel (1866) - plants
                           Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants
                             Phylum Chlorophyta Pascher (1914) [coordinate rank] - green algae
                               "core chlorophytes"
                                 Class Chlorophyceae Wille (1884) - chlorophytes
                                   Order Chlorocystidales [monotypic]
                                     Family Chlorocystidaceaeᵀ [monotypic]
                                       Genus Halochlorococcum P.A. Dangeard (1965)
                                         1 Halochlorococcum dilatatum Kornmann & Sahling
                                         2 Halochlorococcum marinumᵀ P.A. Dangeard
                                         3 Halochlorococcum moorei (N.L.Gardner, 1917) P. Kornmann & P.-H. Sahling (1983)
                                         4 Halochlorococcum operculatum P. Kornmann & P.-H. Sahling (1983)
                                         5 Halochlorococcum porphyrae (Setchell & N.L.Gardner) J.A.West, in J.A.West et al. (1988)
                                         6 Halochlorococcum saccatum