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Sanctus sinaicus n. gen., n. sp (Foraminiferida, Amphisteginidae) from Late Eocene of Sinai, Egypt
Faculty
Science
Year:
2011
Type of Publication:
Article
Pages:
537-542
Authors:
Boukhary, Mohamed, Abd-Elshafi, Ezzat, Mattar, Yousry
Journal:
MICROPALEONTOLOGY MICROPALEONTOLOGY PRESS
Volume:
57
Research Area:
Paleontology
ISSN
ISI:000301210500006
Keywords :
Stratigraphy, Larger Foraminifera, Amphisteginidae, Systematic paleontology, Late Eocene, Sinai, Egypt
Abstract:
Sanctus sinaicus nov. gen et sp. is described from material collected in the uppermost part of the Khaboba Formation and througout the Tanka and Tayiba formations of Wadi Thal and Wadi Matulla in West Central Sinai. We assign this new genus and species to the Late Eocene according to associated planktonic foraminiferal assemblages. Its test is symmetrical in axial section with the division of chambers in the same section similar to that of amphisteginids in their early ontogenetic stage and lacks a canal system. In comparing Sanctus sinaicus with related amphistegenid species, such as Penoperculoides cubaensis Cole and Gravell 1952 from the Caribbean; Penoperculoides rozlozsniki (Mehes) (ex: Nummulites rozlozsniki Macs) from Hungary; and ``Non Nummulites rozlozsniki{''} described by Sander 1962, from the Dammam Formation of Saudi Arabia, we find that Sanctus sinaicus is similar to P. cubaensis in the type of coiling and the character of the umbo, which lacks alar prolongations, a canal system and transverse trabeculae, and differs from species of Nummulites in the central subdivision of chambers.
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