Authors: Kerp, H Broutin, J Lausberg, S Aassoumi, H

Citation: H. Kerp et al., Discovery of latest carbonifercous-early Permian radially symmetrical peltaspermaceous megasporophylls from Europe and North Africa, CR AC S IIA, 332(8), 2001, pp. 513-519

Authors: Broutin, J Aassoumi, H El Wartiti, M Freytet, P Kerp, H Quesada, C Toutin-Morin, N

Citation: J. Broutin et al., The Permian basins of Tiddas, Bou Achouch and Khenifra (central Morocco). Biostratigraphic and palaeophytogeographic implications, MEMOIR MNHN, 179, 1998, pp. 257-278