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The Upper Cretaceous sequence (446m thick) exposed at Gebel Somar (north-central Sinai) is subdivided, from base to top, into the Raha (upper Cenomanian), Abu Qada (upper Cenomanian–lower Turonian), Buttum (middle Turonian), Wata (middle–upper Turonian), Matulla (Coniacian–Santonian), and Sudr Chalk (lower–upper Maastrichtian) Formations. Foraminifera (mainly planktonic) were used to assign ages to...
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