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)
           Order †Voltziales Andreánszky (1954)
             Family †Majonicaceae Clement-Westerhof (1987)
               1 Genus †Dolomitia Clem.-West. (1987)
               2 Genus †Lebowskia Looy (2007)
               3 Genus †Majonica Clem.-West. (1987)
               4 Genus †Pseudovoltzia Florin (1927)