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
                           [Division Thallophyta Endl. (1836)]
                             [Subdivision Algae] see Subdivision Euphyceae
                               [Class Bacillariaceae Ehrenberg (1831)]
                                 1 [Order Discoideae]
                                 2 [Order Solenoideae]
                                 3 [Order Biddulphioideae]
                                 4 [Order Fragillarioideae]
                                 5 [Order Achnanthoideae]
                                 6 [Order Naviculoideae]
                                 7 [Order Eunotioideae]
                                 8 [Order Nitzschioideae]
                                 9 [Order Surirelloideae]