Class Equisetopsida C.Agardh (1825) - horsetails see Subclass Equisetidae Warm. (1883)
   gymnosperms see Class Spermatopsida
     Subclass Pinidae Cronquist, Takht. & Zimmerm. (1966) - conifers
       Order Araucariales Gorozh. (1904)
         1 Family Araucariaceae Henkel & W.Hochst. (1865), nom. cons. - Araucaria family
         2 Family Podocarpaceae Endl. (1847), nom. cons. - podocarp family