Detailed field and stratigraphic studies were undertaken on the Upper Cretaceous-lower Paleogene (K-Pg) pre-rift sequences at the Duwi Mountain Range (DMR), Quseir Area, Red Sea Coast, Egypt. Six stratigraphic sections were investigated to cover the
DMR. They are arranged in a south-north profile as follows: Gabal Hamadat, Nasser Mine, Beida Mine, Gabal Anz, Gabal Nakheil and
Wadi Sudmeen. The studied pre-rift (Red Sea Rift) succession is lithostratigraphically represented by the Duwi (uppermost part), Dakhla,
Tarawan, Esna, and Thebes (lowermost part) formations. Biostratigraphically, twenty-one global planktonic foraminiferal zones were
defined. Three syn-sedimentary tectonic events were recorded, the first and second tectonic events (TE I and TE II) were regional and lie
within the Duwi/Dakhla and the uppermost part of the Hamama Member. The TE I occurred at the Campanian/Maastrichtian (C/M) boundary, whereas the TE II occurred at the beginning of the Danian. TE III was local and is recorded only at Wadi Sudmeen within the Beida
Member in the latest Danian. These events were related to the Syrian-Arc Event, which caused the uplift of the DMR as paleo-highs during
this interval.