Anan, H. S. (2008). Maastrichtian-paleogene LeRoy's benthic foraminiferal species from Egypt and tethyan-atlantic regions. Revue de Paléobiologie. 27(2):357-376.

335386

Anan, H. S.

2008

27(2):357-376

Publication

More than one hundred and thirty Maastrichtian-Paleogene benthic foraminiferal species of diagnostic maqfi section which represents farafra bahariya facies (FBF) in the north-central Egypt are recorded by LeRoy, 1953 and thirty two of them are treated as new. Only sixteen of Leroy's new species and also Anomalinoides leroyi n. sp. are recorded in the study Duwi section at Qusseir area, Red Sea coast in the east central Egypt, which represents the Nile Valley Facies (NVF) of Egypt. The Tethyan aspect, Midway-type fauna (MTF) of middle-outer neritic environment (~50-200 m) is interpreted for the most Maqfi and Duwi fauna. The LeRoy's new faunal assemblage in Maqfi section are not completely recorded in many sections in the northern Egypt as Sinai Facies (SF), while the rarity of this assemblage in some other northern facies as North Western Desert Facies (NWDF) and Southern Galala Facies (SGF) caused by a shallower depth due to paleorelief (highs and lows of the Syrian Arc system). Also, the rarity of this assemblage at Nuba Abu Ballas Facies (NABF) in the southern Egypt due to a regression phase. Accordingly, the Egyptian Maastrichtian-Paleogene foraminiferal assemblages studied by the present author and reported in literatures by other different authors suggest gradual paleogeographical changes from transitional open marine environmental facies in the northern Egypt to shallow shelf setting in the south. The paleogeographical distribution of LeRoy's faunal assemblage in the Tethyan-Atlantic regions is frequent.

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