1. Department of Earth and Marine Sciences, University of Palermo, Via Archirafi, 26, 90123 Palermo, Italy
2. Department of Biology, Ecology and Earth Sciences, University of Calabria, Via P. Bucci, Cubo 12B, 87036 Arcavacata di Rende, Italy
3. Superintendency of Archaeology, Fine Arts and Landscape for the Metropolitan City of Reggio Calabria and the province of Vibo Valentia, Via Fata Morgana, 89125 Reggio Calabria, Italy