1. Aistov, L., Melnikov, B., Krivyakin, B., Morozov, L., Kiristaev, V., 1984. Geology of the Khur area (Central Iran). Explanatory text of the Khur quadrangle map 1:250.000. V/O Technoexport Report 20, 130 pp.
2. The Triassic and associated rocks of the Nakhlak and Aghdarband areas in central and northeastern Iran as remnants of the southern Turan active continental margin;Alavi;Geological Society of America Bulletin,1997
3. New genus Koulabiceras gen. nov. from the Turonian of the eastern part of central Asia;Atabekjan;Izvestiya Akademii Nauk, Armyanskoi SSR, Nauki o Zemle,1966
4. Lower Turonian ammonites from north-eastern Nigeria;Barber;Geological Survey of Nigeria, Bulletin,1957
5. The Turonian stage and substage boundaries;Bengtson;Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre,1996