Fig 4. Radiocarbon dates for the Gravettian assemblages from the Cantabrian region (Asturias, Cantabria and the Basque Country) calibrated against IntCal13 [42] in OxCal v.4.2 [41] assuming each sample has a 5% prior probability of being and outlier within the general t-type outlier model [43].

All dates have been obtained using the ultrafiltration protocol [40]. References are given in S1 Table. A_model = 104.4. *denotes previously unmodelled dates introduced as R-dates while the others are modelled dates at individual sites introduced as Prior PDFs.