Calcareous Nannofossils Biostratigraphy of Gulneri Formation in Sulaimaniya, Northestern Iraq

Investigations on the calcareous nannofossils of the Gulneri Formation are being done in the northern Iraqi of Dokan and Pushen areas, Sulimani, Northern Iraq. In this work, one biozone was established based on the results of a detailed examination used to identify fifty species of calcareous nannofossils; Quadrum gartneri Biozone (CC11) and Lucianorhabdus maleformis Biozone (CC12) in Dokan section, although in this study, three biozones were suggested; Microrhabdulus decoratus Biozone (CC10); Quadrum gartneri Biozone (CC11) and Lucianorhabdus maleformis Biozone (CC12) in Pushen section. According to correlations with other calcareous nannofossil biozones from local region we sagestion the Cenomanian to Turonian for Pushen section and Turonian for Dokan section.