Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
   Subkingdom Pteridobiotina Britton & A. Br. (1896)
     Superdivision Pteridophytanae Doweld (2001) [monotypic] see Superphylum Pteridophytanae Doweld (2001)
       Division Monilophyta Cantino & Donoghue
         Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns
           Order Polypodiales Link (1833) - cathetogyrates
             Family Pteridaceae E.D.M.Kirchn. (1831) - pteroids
               6a Subfamily Cryptogrammoideae S. Linds. (2009)
               6b Subfamily Ceratopteridoideae R.M.Tryon (1987) see Subfamily Parkerioideae Burnett (1835)
               6c Subfamily Pteridoideae Link (1841)
               6d Subfamily Cheilanthoideae Horvat (1927)
               6e Subfamily Vittarioideae Link (1841)