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 †Progymnospermophyta Bold et al. see Phylum Progymnospermophyta Lang (1925)
         Class †Noeggerathiopsida Krysht. (1934)
           Order †Noeggerathiales Darrah (1939) [monotypic]
             Family †Noeggerathiaceae Göpp. ex Eichw. (1854)
               1 Genus †Archaeonoeggerathia R.Remy & W.Remy (1986)
               2 Genus †Noeggerathia Sternb. (1821)
               3 Genus †Noeggerathiaestrobus Feistm. (1871)