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)
             Family †Zygopteridaceae P.Bertrand ex D.H.Scott (1912)
               01 Genus †Alloiopteris Potonié (1897)
               02 Genus †Asterochlaenopsis Sahni (1930)
               03 Genus †Austroclepsis Sahni (1932)
               04 Genus †Biscalitheca Mamay (1957)
               05 Genus †Brittsia D.White (1899)
               06 Genus †Clepsydropsis Unger (1856)
               07 Genus †Corynepteris W.H. Baily (1860)
               08 Genus †Diplolabis Renault (1896)
               09 Genus †Protoclepsydropsis Hirmer (1927)
               10 Genus †Symplocopteris Hueber & Galtier (2002)
               11 Genus †Yulebacaulis Tidwell & Rozefelds (1991)
               12 Genus †Zygopteris Corda (1845)