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 †Pteridospermatophyta Meyen
         Class †Lyginopteridopsida Novák (1961)
           Order †Callistophytales Rothwell (1981)
             Family †Callistophytaceae Stidd & J.W.Hall (1970), nom. cons. prop.
               1 Genus †Callistophyton Delevoryas & Morgan (1954)
               2 Genus †Callospermarion D.A.Eggert & Delev. (1960)
               3 Genus †Dicksonites orth. inval. see Genus Dicksoniites T. Sterzel (1881)
               4 Genus †Idanothekion Millay & D.A.Eggert (1970)
               5 Genus †Mariopteris Zeiller (1879)
               6 Genus †Vesicaspora Schemel (1951)