class Coniferopsida
       n : cone-bearing gymnosperms dating from the Carboniferous
           period; most are substantial trees; includes the classes
           Pinopsida (subdivision Pinophytina) and Ginkgopsida
           (subdivision Ginkgophytina) and Taxopsida (subdivision
           Taxophytina) which in turn include the surviving orders
           Coniferales and Taxales (yews) and sometimes Ginkgoales
           as well as extinct orders such as Cordaitales (of the
           Carboniferous and Permian) [syn: Coniferopsida, Coniferophytina,
            subdivision Coniferophytina, Coniferophyta]