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 Aspleniineae H.Schneid. & C.J.Rothf. (2016) Family Thelypteridaceae Ching ex Pic.Serm. (1970) - thelypteroids 1 Subfamily Phegopteridoideae Salino, A.R.Sm. & T. E. Almeida 2 Subfamily Thelypteridoideae (C.Chr.) C.F.Reed