The remains included large unifacially worked pebble cores aka sumatraliths, grinding stones, and retouched/utilized flakes. Cultural level two consisted of new types of artifacts including flaked and polished quadrangular adzes and small ground/polished slate knives.
The remains included large unifacially worked pebble cores (sumatraliths), grinding stones, and retouched/utilized flakes. Cultural level two was characterized by the introduction of new types of artifacts such as flaked and polished quadrangular adzes and small ground/polished slate knives.