1. Eberhard Karls Universität Tübingen, Institut für Geowissenschaften, Tübingen, Germany
2. Geology Department, Faculty of Science, Mansoura University, Mansoura, Egypt
3. Education Authority, Science Education Supervision Unit, Al-Bukairiyah, Saudi Arabia
4. Saudi Geologists Society, Al-Bukairiyah, Saudi Arabia
5. Senckenberg Forschungsinstitut und Naturmuseum, Frankfurt am Main, Germany