Arefifard, Sakineh, Moradi Lirkashasi, Noshin, Algeo, Thomas, Schueth, Jonathan , Zhang, Lei (2026). Planktonic foraminiferal-based Biostratigraphy of Upper Cretaceous deposits with emphasis on the Cenomanian-Turonian and Cretaceous-Paleogene boundaries in the northeastern part of the Kabirkuh anticline, southeastern Ilam. *Iranian Journal of Petroleum Geology*, 15(29), 19-40.