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 Gnetophyta Bessey (1907) [monotypic]
         Class Gnetopsida Eichler ex Kirpot. (1884)
           Order Gnetales Mart. (1835) [monotypic]
             Family Gnetaceae Blume (1833), nom. cons. - Gnetum family
               01 Genus †Archaestrobilus B. Cornet (1986)
               02 Genus †Chaoyangia Duan (1998), nom. inval.
               03 Genus †Dechellyia Ash (1972)
               04 Genus †Dinophyton Ash (1970)
               05 Genus †Eragrosites Z. Cao & S.Q.Wu (1998), nom. inval.
               06 Genus Gnetum L. (1767)
               07 Genus †Gurvanella Krassilov (1982)
               08 Genus †Nataligma J.M.Anderson & H.M.Anderson (2003)
               09 Genus †Palaeognetaleana Z.-Q. Wang (2004)
               10 Genus †Sanmiguelia R.W.Br. (1956)