Table 2. AMS radiocarbon dates on shells of the marine intertidal gastropod Osilinus turbinatus.

AMS radiocarbon laboratory number	Context	14C Date (BP)	Calendar age cal. BC (2σ)	Calendar age cal. BP (2σ)
OxA-15562	B40/60	6955±36	5570 (p. 95.4%) 5310	7510 (p. 95.4%) 7260
OxA-14256	B100/114	8159±37	6790 (p. 95.4%) 6440	8740 (p. 95.4%) 8390

The dates were performed at the Oxford Radiocarbon Accelerator Unit on specimens from the stratigraphic units 40–60 cm and 100–114 cm of Trench B (Grotta d’Oriente). The dates were calibrated with Oxcal 4.1. [48] using the Marine09 calibration curve [49] and the marine reservoir correction value (ΔR = 71.00±50) for Sicily [82].