Kingdom [Plantae] Haeckel (1866) - plants Division Gymnospermophyta Cleal (1994) - seed plants see Infraphylum Gymnospermae auct. 1 Class †Lagenostomopsida [monotypic] 2 Class † 3 Class Cycadopsida Brongn. (1843) 4 Class Pinopsida Burnett (1835)