Phylum [Tracheophyta] Sinnott ex Caval.-Sm. (1998) - vascular plants Subphylum Polypodiophytina Reveal (1996) [monotypic] Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns Subclass Marattiidae Klinge (1882) [monotypic] Order Marattiales Link (1833) [monotypic] 7 Family Marattiaceae Kaulf. (1824), nom. cons. - marattioids