Kingdom [Plantae] Haeckel (1866) - plants
   Division Pteridophyta Schimp. (1879) see Subphylum Pteridophytina (Eichler) Cavalier-Sm. (1998)
     Class Lycopsida - club-mosses see Class Lycopodiopsida Bartl. (1830)
       1 Order †Drepanophycales Novák (1961) [monotypic]
       2 Order †Protolepidodendrales Koidzumi (1939)
       3 Order Lycopodiales DC. ex Bercht. & J.Presl (1820) [monotypic]
       4 Order Selaginellales Prantl (1874) [monotypic]
       5 Order †Lepidocarpales G.M. Smith (1938)
       6 Order †Miadesmiales Thomas & Brack-Hanes (1984), nom. nud. [monotypic] see Order Miadesmiales Doweld (2001)
       7 Order Isoetales Prantl (1874) - quillworts see Order Isoëtales Prantl (1874)