Phylum [Tracheophyta] Sinnott ex Caval.-Sm. (1998) - vascular plants
   Subphylum Polypodiophytina Reveal (1996) [monotypic]
     Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns
       Subclass Polypodiidae Cronquist, Takht. & Zimmerm. (1966)
         Order Polypodiales Link (1833) - cathetogyrates
           (eupolypods)
             Suborder Polypodiineae Dumort. (1829)
               Family Dryopteridaceae Herter (1949), nom. cons. - dryopteroids
                 Subfamily Elaphoglossoideae Crabbe, Jermy & Mickel
                   Genus Parapolystichum (Keyserling) Ching (1940)