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 neokaryotes Cavalier-Smith 1993 - mitochondrial eukaryotes
                 Clade neozoa Cavalier-Smith 1993
                   Superkingdom Corticata Lankester, 1878
                     Kingdom Plantae Haeckel (1866) - plants
                       Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants
                         Infrakingdom Streptophyta C. Jeffrey (1967)
                           Superphylum Embryophyta Crane et al. (2004)
                             "polysporangiophytes"
                               Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998) - vascular plants
                                 Subphylum Euphyllophytina
                                   Infraphylum "Moniliformopses" Kenrick & Crane, 1997, nom. inval. - monilophytes
                                     Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns
                                       "core leptosporangiates"
                                         Order Polypodiales Link (1833) - polypods
                                           Family Pteridaceae E.D.M. Kirchn. - pteroids
                                             1 Subfamily Platyzomatoideae (Nakai) A.F.Tryon [monotypic]
                                             2 Subfamily Parkerioideae Burnett
                                             3 Subfamily Taenitidoideae (C.Presl) R.M.Tryon
                                             4 Subfamily Cheilanthoideae Horvath
                                             5 Subfamily Adiantoideae (C.Presl) R.M.Tryon
                                             6 Subfamily Pteridoideaeᵀ C. Chr. ex Crabbe, Jermy & Mickel