Um Rigl succession that is exposed in the northwest of Fayoum area, Egypt.
Stratigraphically, two rock units are recognized from base to top as the Gehannam
Formation and Birket Qarun Formation. The examination of benthic foraminiferal community
identifies 63 species belonging to 36 genera, 22 families and four suborders. Their
distribution aids to recognize one benthic foraminiferal biozone, Bulimina jacksonensis …