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 †Moresnetiopsida Doweld (2001)
           Order †Moresnetiales Doweld (2001)
             Family †Eospermataceae A.G. Long (1975)
               1 Genus †Camptosperma A.G. Long (1961)
               2 Genus †Deltasperma A.G. Long (1961)
               3 Genus †Eccroustosperma A.G. Long (1961)
               4 Genus †Eosperma Barnard (1959)