Ashouri, Alireza, Rahimi, Samira, Sadeghi, Abass, Ghaderi, Abbas. “Biostratigraphy of the Gurpi Formation Based on Planktonic foraminifera with emphasis on the Cretaceous-Paleogene boundary in Jahangirabad Section, Kabirkuh Anticline, SW Iran.” Iranian Journal of  Petroleum Geology, vol. 7, no. 14, 2018, pp. 93-110.