Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
       Subkingdom Pteridobiotina Britton & A. Br. (1896)
         Superphylum Pteridophytanae Doweld (2001)
           Phylum Pteridophyta Schimp. (1879) see Phylum Filicinophyta
             Class Marsileopsida Trevis. (1877) see Order Salviniales Link (1833)
               Subclass Marsileidae Doweld (2001) [monotypic] see Order Salviniales Link (1833)
                 Order Marsileales Mart. (1835) [monotypic] see Order Salviniales Link (1833)
                   1 Family Marsileaceae Mirb. (1802) - clover ferns