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 †Progymnospermophyta Bold et al. see Phylum Progymnospermophyta Lang (1925) Class †Noeggerathiopsida Krysht. (1934) Order †Discinitales Doweld (2001) [monotypic] Family †Discinitaceae Gao Zhifeng & B.A.Thomas (1994), nom. cons. prop. 1 Genus †Discinites K. Feistmantel (1880) 2 Genus †Yuania H.C.Sze (1953) 3 Genus †Palaeopteridium Kidst. (1923) 4 Genus †Saaropteris Hirmer (1940)