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 Pteridophyta Schimp. (1879)] see Subphylum Pteridophytina (Eichler) Cavalier-Sm. (1998)
                             .1 [Class Calamophyta]
                             .2 [Class Filices] see Class Filicopsida C.Agardh (1822)
                             .3 [Class Rhizocarpeae]
                             .4 [Class Lepidophyta]
                             05 [Order †"Barinophytales" Høeg (1967), nom. inval., incertae sedis [monotypic]] see Order Barinophytales Høeg ex Doweld (2001)
                             06.0 [Class Psilophytatae]
                             06.0 [Class Psilopsida] see Class Psilophytatae
                             07.0 [Class Lycopodiatae]
                             08.0 [Class Articulatae]
                             08.0 [Class Equisetatae] see Class Articulatae
                             09.0 [Class Filicatae]