Ilānṣurā an important walled city on a large river according to texts of the Mari Tablets (1800–1750 BC), has been tentatively identified with Hasankeyf. The site is a circular mound about 150 min diameter and 8 m high above the surroundings. The main traces of ocuupations are from the 10th millennium cal. BC.
- Michael C. Astour, "The North Mesopotamian Kingdom of Ilānșurā", in Young, Gordon Douglas, Mari in Retrospect, Winona Lake, Indiana: American Oriental Society/Eisenbrauns 1992, pp. 1–33
- Yutaka Miyake, Osamu Maeda, Kenichi Tanno, Hitomi Hongo and Can Y. Gündem, New Excavations at Hasankeyf Höyük: A 10th millennium cal. BC site on the Upper Tigris, Southeast Anatolia, Neo-Lithics, 1/12, pp. 3-7