Phase six (from 5 to 4 feet down)[1] contained Neolithic pottery fragments and domesticated animal bones dated between 7 and 4.7 thousand years old.[2] Flint fragments are found as well as finished tools, flake-scrapers, arrow-heads, a bifacial knife, trihedral pressure-flaked rods and drill heads.[3] The presence of decorated ostrich eggs and pierced sea shells are also common in this phase.[3] The piercing of these shells are thought to be for reasons of consumption and were carried out by small bladed tools.[5]