Pliocene-Lower Pleistocene Ostracoda Fauna from İnsuyu Limestone (Karapınar-Konya/Central Turkey) and its Paleoenvironmental Implications / Pliyosen-Pleyistosen Yaşlı İnsuyu Kireçtaşı'nın Ostrakod Faunası (Karapınar-Konya/İç Anadolu, Türkiye) ve Eski Ortamsal Yorumu

Authors : Kaan Beker, Cemal Tunoğlu, Ibrahim Kadri Ertekin

Pages : 1-32

View : 27 | Download : 15

Publication Date : 2008-04-01

Article Type : Research

Abstract :The study area is located in the southern part of the Central Anatolia Neogene Basin (north of Karapınar Town and  Acı Göl, Konya). The İnsuyu Limestone Unit, which has a total thickness of 100-400 m, is composed of claystone,  sandstone, conglomerate and chert. There are also andezite and pyroclastic interclations within İnsuyu limestone.  The claystone layers of this unit are white to pink in color and contain abundant Ostracoda and a few fresh water  Gastropoda. In this study, 160 samples from 8 stratigraphic sections were collected but only samples having  limestone lithology contained ostracods. Atotal of 16 ostracods taxa (11 previously known and five belonging to  open nomenclature) are systematically described as  Cyprideis pannonica, C. torosa, Ilyocypris gibba, I. bradyi,  Candona neglecta, C. candida, C. altoides, C. decimai, Pseudocandona compressa, Heterocypris salina,  Zonocypris membranea, Ilyocypris Candona , Candona Pseudocandona Cypridopsis  sp. sp.1 sp.2, sp. and sp.  Based on this Ostracoda fauna, the age of this unit is assigned as Pliocene-Early Pleistocene. This fauna indicates a  few brackish but dominantly fresh water conditions in a lacustrine environment.
Keywords : Fresh water Ostracoda, İnsuyu Limestone Unit, Pliocene-Early Pleistocene, systematics