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 Plantae Haeckel (1866) - plants
                           [Division Embryophyta zoidiogama]
                             [Subdivision Pteridophyta Haeckel (1875)]
                               1 [Class Filicales Dumort.]
                               1.0 [Class Filicinae] see Class Filicales Dumort.
                               2 [Class Equisetales DC. ex Bercht. & J.Presl]
                               3 [Class †"Sphenophyllales" Engl. (1892), orth. inval.] see Class Sphenophyllopsida Engl. (1892)
                               3.0 [Class †Sphenophyllinae] see Class Sphenophyllales Engl. (1892), orth. inval.
                               4 [Class Lycopodiales DC. ex Bercht. & J.Presl]