Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies Superphylum Pteridophytanaeᵀ Doweld (2001) 1 Family †Boegendorfiaceae Kräusel & Weyland (1949), incertae sedis 2 Family †Haspiaceae Koidz. (1938), incertae sedis