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Endemic Foraminifera of the Late Maastrichtian from the Northern Branch of the Neotethys, NE Turkey

Nurdan İnan and Selim İnan
Micropaleontology
Vol. 55, No. 5 (2009), pp. 514-522
Stable URL: http://www.jstor.org/stable/20627993
Page Count: 9
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Endemic Foraminifera of the Late Maastrichtian from the Northern Branch of the Neotethys, NE Turkey
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Abstract

The study of benthic foraminifera from the upper Maastrichtian intraplatform open shelflimestones in northeastern (Eastern Pontides) and central (Anatolides parts of Turkey reveals the presence of some benthic foraminiferal taxa, which appear to characterize the northern branch of the Neo-Tethys. The limestones are mainly composed of two microfacies: skeletal wackestone and bioclastic wackestone. These facies include Sirelina orduensis (Meriç and İnan), Laffitteina turcica (İnan), Cideina soezerii (Sirel), Selimina spinalis (İnan), Sivasella goekceni (Meriç and İnan) and Postomphalocyclus merici (İnan). The geographic distribution of these species seems to be limited to the southern continental margin of the northern branch of the Neo-Tethys Ocean and the southern margin of the Rhodope-Pontide Fragment. These endemic taxa are associated with Orbitoides medius, Orbitoides apiculatus, Omphalocyclus macroporus, Pseudomphalocyclus blumenthali, Simplorbites papyraceus, Hellenocyclina beotica, Siderolites calcitrapoides, Loftusia minor, Smoutina cruysi, Sirtina orbitoidiformis, Laffitteina marsicana, Cuneolina ketini, Moncharmontia sp. and Dargenionella sp. which indicate a Late Maastrichtian age.

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