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 †Progymnospermopsida Beck (1960) see Clade Pan-Spermatophyta Cantino & Donoghue 2007 [Cantino, Doyle & Donoghue 2020]
           Order †Archaeopteridales W.Zimm. (1930) [monotypic]
             Family †Archaeopteridaceae Nicholson & Lydekker (1889)
               1 Genus †Actinopodium Høeg (1942)
               2 Genus †Actinoxylon Matten (1968)
               3 Genus †Archaeopteris Dawson (1871)
               4 Genus †Callixylon Zalessky (1911)
               5 Genus †Eddya C.B.Beck (1967), nom. illeg.
               6 Genus †Siderella C.B.Read (1936)
               7 Genus †Svalbardia Høeg (1942)