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 Cycadophytanae Doweld (2001) Phylum †Aneurophytophyta Bold (1973) see Subphylum Aneurophytophytina Doweld (2001) Subphylum †Archaeopteridophytina Doweld (2001) [monotypic] Class †Archaeopteridopsida Takht. (1978) [monotypic] 1 Order †Archaeopteridales W.Zimm. (1930) [monotypic]