A series of very early Neolithic farming sites on the southern fringes of Sahara Desert in southern Mauritania. The first village settlements of the Naghez phase, 1200-1000 BC, had circular compounds connected by wide paths. Fishing, hunting, and wild grasses were the village's subsistence. During Chebka phase, 1000-700 BC, lakes dried up, so animal husbandry increased and millet was cultivated. The Akanjeir phase, 700-300 BC, saw further climatic deterioration, ending permanent settlement.