Biostratigraphy of Jeribe Formation at Selected Sections in Wasit Governorate, Eastern Iraq

Abstract

The present study is concerned with Biostratigraphy of the Early-Middle Miocene outcrops of Jeribe Formation in the Zurbatiyah area, Wasit Governorate, Eastern Iraq. Forty-two Samples collected from Shur Sharin and AL-Hashima outcrop sections. The fossil content is rich in large and small benthic foraminifera; Twenty-one species and genus are identified in this study, in addition to coral, gastropoda, pelecypoda, ostracoda, alge, echinoid and shell fragments. According to the presence of benthic foraminifera, two Biozone have been identified in Jeribe Formation as follows:

• Austrotrillina asmariensis-Dendritina rangi Concurrent Zone.
• Borelis melo curdica range zone.                                                                                                                                The age of the Formation determined as Early-Middle Miocene depending on these Biozone