干旱区生态环境知识资源中心(Arid): Paleoecological and paleobiogeographical inferences of the Paleocene ostracods from Sinai, Egypt

Arid

DOI	10.1016/j.jafrearsci.2023.104851
	Paleoecological and paleobiogeographical inferences of the Paleocene ostracods from Sinai, Egypt
	Shahin, Abdalla; El Baz, Sherif M.
通讯作者	El Baz, SM
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2023
卷号	199
英文摘要	The present study aims to detect the paleoecology and paleobiogeography of the Paleocene ostracods from Sinai, Egypt. In order to reach our goals, the Paleocene rocks were examined in four outcrops (El Dokh, El Qussaima, Matulla, and Ekma sections) from Sinai, Egypt. The recognized rock units include Dakhla Formation (at the base) and Tarawan Formation (at the top). The investigation of the ostracod fauna yielded 49 species and subspecies, which enabled the recognition of one Paleocene biozone, Mauritsina teiskotensis -Ordoniya ordoniya Zone. The Early and Middle Paleocene have diverse assemblages, while the Late Paleocene showed a rarity of ostracods. Based on the shape of the carapaces and the surface ornamentation, four ostracod morphogroups were recog-nized. Morphogroup 4 is the most common group in all the studied sections. The structure of ostracod assem-blages (abundance, richness and the morphogroups) besides the lithology pointed out to middle -outer neritic depositional environment for the studied Paleocene sections. The identified species have a wide geographic range, extending from West Africa, North africa to the Middle East. The paleobiogeographic framework is carried out with the aid of multivariate analyses. The suggested matrix consists of 25 ostracod species from 10 countries, including Egypt, Libya, Tunisia, Algeria, Jordan, Israel, Senegal, Ivory Coast, Niger and Mali. The outcomes of the Q-mode cluster analysis indicate that the selected countries may be categorized into three provinces, North Africa (Libya, Algeria, Tunisia and Egypt), West Africa (Senegal, Mali, Ivory Coast and Niger), and Middle East (Israel and Jordan). The similarity of ostracod assemblages between North Africa, including Egypt, with that of Jordan and Israel, suggests the migration and exchange through the southern Tethyan coast. The common deep marine species between North and West Africa may be migrated along the West African coast on the Atlantic Ocean, while shallow species migrated through the trans-Saharan seaway.
英文关键词	Paleocene Ostracods Paleobiogeography Trans-Saharan seaway Sinai Egypt
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000930550600001
WOS关键词	WEST-CENTRAL SINAI ; CRETACEOUS-PALEOGENE OSTRACODS ; EARLY EOCENE OSTRACODES ; TERTIARY OSTRACODS ; FARAFRA OASIS ; NORTH-AFRICA ; KHARGA OASIS ; DESERT ; BIOSTRATIGRAPHY ; TAXONOMY
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397098
推荐引用方式 GB/T 7714	Shahin, Abdalla,El Baz, Sherif M.. Paleoecological and paleobiogeographical inferences of the Paleocene ostracods from Sinai, Egypt[J],2023,199.
APA	Shahin, Abdalla,&El Baz, Sherif M..(2023).Paleoecological and paleobiogeographical inferences of the Paleocene ostracods from Sinai, Egypt.JOURNAL OF AFRICAN EARTH SCIENCES,199.
MLA	Shahin, Abdalla,et al."Paleoecological and paleobiogeographical inferences of the Paleocene ostracods from Sinai, Egypt".JOURNAL OF AFRICAN EARTH SCIENCES 199(2023).