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 Pinophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) [monotypic]
         Class Pinopsida Burnett (1835)
           a Order †Cordaitales D.H.Scott (1909) [monotypic]
           b Order †Voltziales Andreánszky (1954)
           c Order †Vojnovskyales Neub. (1955)
           d Order †Czekanowskiales Novák (1972) [monotypic]
           e Order Pinales Dumort. (1829) [monotypic] - conifers
           f Order Araucariales Gorozh. (1904)
           g Order Cupressales Link (1829)