Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         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
                             Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                               Infrakingdom Halvaria Cavalier-Smith, 2010
                                 Superphylum Heterokonta Caval.-Sm. (1986)
                                   Phylum Ochrophyta Caval.-Sm. (1995)
                                     Subphylum Phaeista Caval.-Sm. (1995)
                                       Infraphylum Marista Caval.-Sm. (2006)
                                         Superclass Fucistia Caval.-Sm. (1995)
                                           Class Xanthophyceae P. Allorge ex Fritsch (1935) - yellow-green algae
                                             Order Mischococcales
                                               01 Family Pleurochloridaceae Pascher (1937)
                                               02 Family Botrydiopsidaceae
                                               03 Family Botryochloridaceae
                                               04 Family Gloeobotrydaceae
                                               05 Family Gloeopodiaceae [monotypic]
                                               06 Family Mischococcaceaeᵀ [monotypic]
                                               07 Family Characiopsidaceae Pascher
                                               08 Family Chloropediaceae [monotypic]
                                               09 Family Trypanochloridaceae [monotypic]
                                               10 Family Centritractaceae
                                               11 Family Ophiocytiaceae Lemmermann (1899)