La flore autunienne du site de l’étang de Martenet (Blanzy...
Mainz. Geowiss. Mitt. (1985), pp. 159-286 Google Scholar [15] H. Kerp, J. Broutin, S. Lausberg, H. Aassoumi Discovery of latest Carboniferous–Early Permian radially symmetrical peltaspermaceous megasporophylls from Europe and North Africa ...