Systematics and biostratigraphy of Oligocene (Rupelian-Early Chattian) foraminifera from lagoonal-very shallow water limestone in the eastern Sivas Basin (central Turkey)


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Sirel E., ÖZGEN ERDEM N. , KANGAL Ö.

GEOLOGIA CROATICA, cilt.66, ss.83-109, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 66 Konu: 2
  • Basım Tarihi: 2013
  • Doi Numarası: 10.4154/gc.2013.07
  • Dergi Adı: GEOLOGIA CROATICA
  • Sayfa Sayıları: ss.83-109

Özet

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.