Calcareous Nannofossil Biostratigraphy of Sarmord Formation (Lower-Upper Cretaceous) in Bekhme Anticline, Kurdistan  Region – Northeastern Iraq. INJES [Internet]. 2026 Oct. 1 [cited 2026 Sep. 30];26(4):81-97. Available from: https://earth.uomosul.edu.iq/index.php/earth/article/view/56104