Introduction in: Early Paleogene Geohistory of Egypt:The Dababiya Quarry Corehole; Stratigraphy, vol. 9 ( 3–4), text-figures 1–6, pp. 183–188, 2012 (2013). Research Authors Berggren, W. A. and Ouda, Kh., 2013. Research Member Khaled Abdel-kader Ali Oda