1. ENEA Casaccia Research Centre, Rome, Italy
2. Earth and Marine Science Deptartment, Palermo University, Palermo, Italy
3. Fauna Museum, Department of Veterinary Science, Messina University, Messina, Italy
4. Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
5. Earth Science Deptartment, Sapienza University of Roma, Rome, Italy
6. DiSTAR, Earth Science, Environmental and Resources Department, University of Naples, Naples, Italy
7. Mathematics and Geoscience Deptartment, University of Trieste, Trieste, Italy
8. Australian National University, Canberra, ACT, Australia
9. Ecole Normale Supérieure, Paris, France
10. ISPRA Italian National Institute for Environmental Protection and Research, Rome, Italy
11. Studio Geologi Associati T.S.T., Catania, Italy
12. Earth and Marine Science Department, Catania University, Catania, Italy
13. CNR IAMC, Calata Porta di Massa, Naples, Italy