1. Faculty of Nature and Life Sciences, University Mustapha Stambouli of Mascara, Mascara, Algeria
2. Research Laboratory n°25, Earth and Universe Sciences, Abou-Bekr Belkaid University, Tlemcen, Algeria
3. Paris, France
4. GeoZentrum Nordbayern Universität Erlangen Loewenichstr, Erlangen, Germany
5. National Museum, Palaeontological Department, Natural History Museum Cirkusová 1740, Prague 9 - Horní Počernice, Czech Republic and Ivančická 581, 19900 Prague 9 - Letňnany, Czech Republic
6. Geodynamic of Basin and Sedimentary Balance Laboratory, Mohamed Ben Ahmed Oran 2 University, Oran, Algeria