Domain Eucaryota Subdomain Chlorota Doweld (2001) Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981) Subkingdom Pteridobiotina Britton & A. Br. (1896) Superphylum Pteridophytanae Doweld (2001) Phylum Pteridophyta Schimp. (1879) see Phylum Filicinophyta Class Osmundopsida Doweld (2001) [monotypic] see Order Osmundales Bercht. & J.Presl (1820) Order Osmundales Bercht. & J.Presl (1820) 1 Family †Grammatopteridaceae Němejc (1963) see Family Psalixochlaenaceae Holmes (1981) 2 Family †Guaireaceae R.Herbst (1981) see Family Osmundaceae Martinov (1820) 3 Family Osmundaceae Martinov (1820)