Abdallah FT, Al-Dulaimi SI. Biostratigraphy of the Upper Cretaceous for selected sections in northern Iraq. Iraqi Journal of Science [Internet]. 2019 Mar. 27 [cited 2025 Dec. 6];60(3):545-53. Available from: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/639