The Zacatn rock shelter (Granada, Spain): New data on the Mesolithic-Neolithic transition in the south-eastern Iberian coast

This study presents a holistic analysis of the occupation sequence at the rock shelter of Zacatin (Gualchos-Castell de Ferro, Granada, Spain), a site in the cliffs along Andalusia's Mediterranean coastline. Despite being disturbed by cave-ins and erosion, it offers valuable information on the transition between the Mesolithic hunter -gatherers and the first Neolithic farming communities in southern Iberia. The study adopted an approach combining stratigraphical and radiocarbon analyses with typological, archaeozoological and archaeobotanical classifications. The stratigraphical sequence comprises four main phases. The uppermost level (Phase 4) yielded a combination of modern and displaced prehistoric elements. Intermediate Phases 3 and 2 correspond to Early Neolithic layers ranging between the mid -6th to the beginning of the 5th millennium cal BC. The Neolithic finds consist of incised and impressed potsherds, stone tools, ornaments (perforated shells and discoidal beads) as well as domestic animals (caprines) and plant (cereals) species. Although the older Mesolithic horizon (Phase 1) yielded few characteristic artifacts, radiocarbon datings place it in the 7th millennium cal BC. In any case, an original aspect of the site is the key role played by marine resources throughout both its Mesolithic and Neolithic phases.