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 Protophyta]
                             [Class? Dictyocheae]
                             [Class? Peridineae]
                             1 [Class Phytarcha]
                             2.1? [Class? Murracyteae Haeckel (1890)]
                             3 [Class Cosmariae]
                             4 [Class Palmellariae]
                             5 [Class Siphoneae] see Series Siphoneae