vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
   euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
     monilophytes - ferns see Clade Monilophyta Cantino & Donoghue 2007 [Doyle, Cantino & Donoghue 2020]
       Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns
         core leptosporangiates
           Order Polypodiales Link (1833) - cathetogyrates
             eupolypods
               eupolypods II see Suborder Aspleniineae H.Schneid. & C.J.Rothf. (2016)
                 Family Thelypteridaceae Ching ex Pic.Serm. (1970) - thelypteroids
                   1 Genus Cyclosorus Link (1833)
                   2 Genus Macrothelypteris (H.Ito) Ching (1963)
                   3 Genus Phegopteris (C.Presl) Fée (1852)
                   4 Genus Pseudophegopteris Ching (1963)
                   5 Genus Thelypteris Schmidel (1763), nom. cons.