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      SMALLER FORAMINIFERS FROM THE LOWER PERMIAN EMARAT FORMATION, EAST OF FIRUZKUH (CENTRAL ALBORZ, IRAN)

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          Abstract

          The uppermost Carboniferous-Lower Permian Dorud Group of the Gaduk section in Central Alborz (Iran) is more than 44 m-thick; it includes thick succession of conglomerates, quartzarenites, calcareous sandstones, oncolitic fusulinid limestones, sandy limestones, sandstones and shales. The Toyeh, Emarat and Shah Zeid formations of this Group were dated from the Gzhelian to the Sakmarian. A review of the uppermost Gzhelian, Asselian and lower Sakmarian smaller foraminifers of the Emarat Formation of the Gaduk section is here presented. Three foraminiferal biozones are defined: the Nodosinelloides shikhanica-Geinitzina primitiva Zone is latest Gzhelian in age; the Nodosinelloides spp.-Geinitzina spp.-Pseudoacutella partoazari Zone is Asselian; the Rectogordius iranicus gadukensis-Endothyra cf. bamberi Zone is early Sakmarian in age. A new subspecies Rectogordius iranicus gadukensis n. subsp. is described, and the genera Pseudovidalina and Grovesella are discussed. The studied assemblages are correlated with those from the Carnic Alps (Austria-Italy), East European Platform of Russia, the Urals (Russia), Darvaz (Uzbekistan), the northern and central Pamirs (Tajikistan), Central Iran, northern Afghanistan and other classical regions of the Tethyan realm.

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          Author and article information

          Journal
          Rivista Italiana di Paleontologia e Stratigrafia
          Università degli Studi di Milano
          01 October 2016
          : 122
          : 3
          Article
          f4a90d8485844e02aa5547a0b01aa8fd
          10.13130/2039-4942/7720

          RIPS is published under a Creative Commons Attribution-NonCommercial-NoDerivatives Licence 4.0 International (CC BY-NC-ND 4.0). The journal allows the author(s) to hold the copyright without restrictions. To view a copy of this license, visit https://creativecommons.org/licenses/by-nc-nd/4.0/

          Categories
          Geology
          QE1-996.5
          Paleontology
          QE701-760

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