Cretaceous palaeoecology, palaeoclimatology and palaeogeography of the northern Western Desert of Egypt

In the Aptian-Maastrichtian of the KRM-1 and AG-18 wells several zones (number in brackets) can be distinguished based on miospores (8), dinoflagellates (8), cosmopolitan globotruncanids (11), local heterohelicids (6), and benthonic foraminifera (4). In this time interval the depositional environment changed from inner shelf (Aptian-Turonian) to upper and middle slope (Campanian-Maastrichtian).