organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Plantae Haeckel (1866) - plants Phylum Cycadophyta Bessey (1907) see Subclass Cycadidae Pax (1894) Genus Bowenia Hook.f. (1863)