[plants] Haeckel (1866) - plants
   vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
     euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
       "Moniliformopses" Kenrick & P.R.Crane (1997), nom. inval. - ferns see Infraphylum Moniliformopses Kenrick & P.R.Crane (1997), nom. inval.
         Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns
           Order Polypodiales Link (1833) - cathetogyrates
             01 Family Lindsaeaceae C.Presl ex M.R.Schomb. (1848) - lindsaeoids
             02 Family Saccolomataceae Doweld (2008)
             03 Family Dennstaedtiaceae Lotsy (1909) - dennstaedtioids
             04 Family Pteridaceae E.D.M.Kirchn. (1831) - pteroids
             05 Family Aspleniaceae Newman (1840) - spleenworts
             06 Family Woodsiaceae Herter (1949) - lady ferns
             07 Family Thelypteridaceae Ching ex Pic.Serm. (1970) - thelypteroids
             08 Family Blechnaceae Newman (1844) - blechnoids
             09.1 Family Onocleaceae Pic.Serm. (1970) - onocleoids
             09.2 Family Dryopteridaceae Herter (1949), nom. cons. - dryopteroids
             09.3 Family Lomariopsidaceae Alston (1956) - lomariopsids
             09.4 Family Tectariaceae Panigrahi - tectarioids
             10.1 Family Oleandraceae Ching ex Pic.Serm. (1965)
             10.2 Family Davalliaceae M.R. Schomb. (1848) - davallioids
             11 Family Polypodiaceae J.Presl & C.Presl (1822) - polygrams