Eucaryota
   Chlorota Doweld (2001)
     Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
       Pteridobiotina Britton & A. Br. (1896)
         Pteridophytanae Doweld (2001)
           Pteridophyta Schimp. (1879) see Phylum Filicinophyta
             Marsileopsida Trevis. (1877) see Order Salviniales Link (1833)
               Salviniidae Reveal (1996) see Order Salviniales Link (1833)
                 †Hydropteridium Doweld (2001)