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 Marattiopsida Doweld (2001) see Subclass Marattiidae Klinge (1882)
           Order †Zygopteridales Emberger (1944)
             1 Family †Zygopteridaceae P.Bertrand ex D.H.Scott (1912)
             2 Family †Rhacophytaceae Radcz. (1963) [monotypic]
             3 Family †Tedeleaceae D.A.Eggert & T.N.Taylor
             4 Family †Psalixochlaenaceae Holmes (1981)
             5 Family †Sermayaceae Eggert & Delevoryas (1967), nom. cons. prop.