Biostratigraphy and Paleobiogeographic implications of the Cenomanian–Early Turonian Ostracods of Egypt |
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| Institution: | 1. Department of Geology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran;2. Department of Geology, North Tehran Branch, Islamic Azad University, Tehran, Iran;3. Young Researchers and Elite Club, Mashhad Branch, Islamic Azad University, Mashhad, Iran;1. Larbi Ben M''hidi University, Oum El Bouaghi. Algeria b Badji Mokhtar University, P.B. 12, 23000 Annaba. Algeria;2. Badji Mokhtar University, P.B. 12, 23000 Annaba. Algeria;3. Department of Geology, Faculty of Science, Benha University, Benha, Egypt;4. Dame du Lac 213, 3, rue Henri-Barbusse, 76300 Sotteville-lès-Rouen, France;1. Geology Department, Faculty of Science, Ain Shams University, 11566 Cairo, Egypt;2. Geology Department, Faculty of Science, Al-Azhar University, Nasr City, 11884 Cairo, Egypt;1. Post-Graduate Programme in Geosciences, Department of Geology, Federal University of Pernambuco (Universidade Federal de Pernambuco), Recife, 50670-901, Brazil;2. Centro de Ciências Agrárias, Campus II, Departamento de Ciências Biológicas, Centro de Ciências Agrárias, Universidade Federal da Paraíba, Centro, 58397-000, Areia, PB, Brazil;3. Departamento de Geologia da Universidade Federal de Pernambuco/ Laboratório de Isotopos Estáveis (NEG-LABISE), Brazil;4. PETROBRAS Research and Development Center, Av. Horácio de Macedo 950, Ilha do Fundão, Rio de Janeiro, RJ 21941-915, Brazil;5. Departamento de Geologia e Pós-graduação em Geociências da Universidade Federal de Pernambuco (UFPE), Brazil;1. CAS Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China;2. Department for Geodynamics and Sedimentology, University of Vienna, Geozentrum, Althanstrasse 14, 1090 Vienna, Austria;3. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China;4. University of Chinese Academy of Sciences, Beijing 100049, China;5. Sam Noble Oklahoma Museum of Natural History (SNOMNH), 2401 Chautauqua Avenue, Norman, OK 73072-7029, USA;6. State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Xueyuanlu 29, Haidian District, Beijing 100083, China |
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| Abstract: | The present study deals with the Cenomanian–early Turonian ostracods in the southern Sinai, Egypt. The investigated sequence includes the Raha and Abu Qada formations. The Raha Formation consists of distinctive Cenomanian taxa such as Cytherella aegyptiensis, Veeniacythereis maghrebensis, V. jezzineensis, V. streblolophata streblolophata, Monoceratina trituberculata, and Glenocythere reticulata. Based on the ostracod species, four local biozones are recognized, including Veeniacythereis jezzineensis – Metacythereopteron berbericum, Cytherella eosulcata – Xestoleberis derorimensis, Amphicytherura ziregensis and Perissocytheridea istriana – Cythereis fahrioni. The paleobiogeography of the considered ostracods suggests that there are two bioprovinces, the first of which is the North African province and includes Egypt, Tunisia and Algeria. The second bioprovince represents the Middle East province and includes Lebanon, Oman and Iran. The strong resemblance between the two bioprovince indicates a relatively good communication along the margin of Southern Tethys during the Cenomanian and improved marine ostracod exchange. |
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| Keywords: | Cenomanian Turonian Ostracods Paleobiogeography Egypt Cénomanien Turonian Ostracodes Paléobiogéographie Égypte |
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