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 †Aneurophytophytina Doweld (2001)
               Class †Aneurophytopsida Bierhorst ex Takht. (1978)
                 1 Order †Aneurophytales Beck (1957) [monotypic]
                 2 Order †Protopityales Walton (1957) [monotypic]