Definition of class coniferopsida
(noun)
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)