Kingdom [Plantae] Haeckel (1866) - plants Division Pteridophyta Schimp. (1879) see Subphylum Pteridophytina (Eichler) Cavalier-Sm. (1998) Class Filicopsida C.Agardh (1822) - ferns see Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) Order †Urnatopteridales Danzé (1956), nom. ined. [monotypic] see Order Urnatopteridales Danzé ex Doweld (2001) 1 Family †Urnatopteridaceae Danzé (1956), nom. ined. see Family Urnatopteridaceae Doweld (2001)