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    FORAMINIFERAL DESCRIPTION OF THE MIOCENE SHALLOW-WATER LIMESTONE FROM THE DIYARBAKIR AND SIIRT AREAS OF SOUTHEAST TURKEY
    (Palaeontological Soc India, 2020) Sirel, Ercument; Ozgen-Erdem, Nazire; Sinanoglu, Derya
    This study presents the descriptive palaeontology of two very shallow-water Miocene successions with benthic foraminifera located in the DiyarbakirSiirt region of southeastern Turkey. Two rows of apertural foramina and alternating Y-shaped septula with supplementary chamberlets were identified. As a result, Borelis curdica (Reichel) was transferred to Praebullalveolina Sirel and Acar as Praebullalveolina curdica (Reichel). Furthermore, two Holocene archaiasinid genera, Androsina Levy and Cyclorbiculina Silvestri, of the new species were described and figured as Cyclorbiculina minima n. sp. and Androsina diyarbakirensis n. sp. from the very shallow-water Miocene limestone of the Derge section. The Oligocene hauerinid species Sivasina egribucakenssis Sirel and Ozgen-Erdem and Sivasina batmanensis n. sp. were also defined from the shallow-water Miocene limestone of the Derge and Baysu sections.
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    Systematics and biostratigraphy of Oligocene (Rupelian-Early Chattian) foraminifera from lagoonal-very shallow water limestone in the eastern Sivas Basin (central Turkey)
    (INST GEOLOSKA ISTRAZIVANJA, 2013) Sirel, Ercument; Ozgen-Erdem, Nazire; Kangal, Ozgen
    The aim of the present work is to describe the Oligocene (Rupelian-early Chattian) shallow water larger foraminifera from central Turkey (Sivas Basin). Among them is a new miliolid genus, Sivasina n. gen. SIREL & OZGEN-ERDEM (type species Sivasina egribucakensis n. gen. n. sp. SIREL & OZGEN-ERDEM), which occurs in the Egribucak, Bakimli, Tuzlagozu and Caygoren sections (E of Sivas). One new Rupelian-early Chattian lagoonal very shallow water peneroplid species Peneroplis flabelliformis n. sp. SIREL & OZGEN-ERDEM from the Egribucak, Tuzlagozu and Caygoren sections and Rupelian lagoonal two new peneroplid species Coscinospira sivasensis n. sp. SIREL & OZGEN-ERDEM, Coscinospira elongata n. sp. SIREL & OZGEN-ERDEM from the Egribucak section (E of Sivas), two new Rupelian very shallow water alveolinid species Praebullalveolina oligocenica n. sp. SIREL & OZGEN-ERDEM and Praebullalveolina minuta n. sp. SIREL & OZGEN-ERDEM from the Bakimli section are described and figured. Furthermore, details on several already known Oligocene species are given (soritids: Praearchaias diyarbakirensis SIREL, Praearchaias minimus SIREL, Archaias kirkukensis HENSON, Archaias asmaricus SMOUT & EAMES; austrotrillinids: Austrotrillina brunni MARIE). In addition, the biostratigraphy of four studied sections is discussed.