1. Department of Geology, University of Patras, Rio, Greece
2. School of Geology, Aristotle University of Thessaloniki, Thessaloniki, Greece
3. Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Athens, Greece
4. Ephorate of Palaeoanthropology–Speleology, Hellenic Ministry of Culture and Sports, Athens, Greece