Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981) Subkingdom Pteridobiotina Britton & A. Br. (1896) Superdivision Cycadophytanae Doweld (2001) see Superphylum Cycadophytanae Doweld (2001) Division Cycadophyta Bessey (1907) Class Cycadopsida Brongn. (1843) Subclass Cycadidae Pax (1894) [monotypic] - cycads a Order Cycadales Pers. ex Bercht. & J.Presl (1820) - cycads