“…The finding shows that GSM was occupied by humans at least from the late Upper Paleolithic (around 14,200 cal yr BP) to historical times. This stratigraphic succession was divided into ten distinct archaeological layers which correspond to different periods when the cave was inhabited, as reported by Alessio et al, [ 42 , 43 ], from top to bottom: I, Roman period; II, Bronze age; III, Eneolithic; IV, period not identified; V, late Neolithic; VI, VII and VIII, Middle Neolithic; IX, Mesolithic and X, Upper Paleolithic. Each layer was subdivided into stratigraphical spits (or sections) numbered with Arabic numbers from 0 (top) to 72 (bottom) and, for some of them, samples of charcoal, charred bones or shells were radiocarbon dated by Alessio et al [ 42 , 43 ].…”