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 †Psilophytanae Doweld (2001)
           Phylum †Psilophytophyta Zimmerm. (1930) [monotypic]
             Class †Psilophytopsida Kidst. & Lang (1917) [monotypic]
               1 Order †Psilophytales Pia (1924)