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 †Aneurophytales Beck (1957) [monotypic]
             Family †Aneurophytaceae Ananiev (1963), nom. cons. prop.
               1 Genus †Aneurophyton Kräusel & Weyland (1923)
               2 Genus †Protokalon orth. inval. see Genus Proteokalon Scheckler & H.P.Banks (1971)
               3 Genus †Protopteridium Krejčí (1880)
               4 Genus †Sphenoxylon C.B.Read (1937)
               5 Genus †Tetraxylopteris C.B.Beck (1957)