Ahmad, S.; Kroon, D. .; Rigby, S. .; Hanif, M.; Khan, S.; Ali, F.; Jan, I. U.; Ali, F.; Hussain, H. S. Endemic Vs Cosmopolitan Tethyan Benthic Foraminifera from the Lower Eocene Panoba Formation, Kohat Sub Basin, Pakistan: Implications for Early Eocene Warming. jhes 2016, 49, 131-143.