Yerbilimleri/ Earth Sciences, vol.35, no.2, pp.137-150, 2014 (Scopus)
© 2014, Hacettepe Universitesi Yerbilmleri. All rights reserved.A. callosa Hottinger, A. fragilis Hottinger, A. fusiformis Sowerby, A. kieli Sirel & Acar, A. nuttalli (Davies), A. stercusmuris Mayer-Eymar and nummulitid species Nummulites malatyensis Sirel are described and figured from the shallow-water marine limestone samples of Yakacık-Memlik region (N-Ankara, Central Turkey). Amongst all these species the presence of A. fragilis, A. fusiformis and N. malatyensis represents the Bartonian stage in the studied area. In addition, stratigraphic range of A. callosa, A. kieli, A. nuttalli and A. stercusmuris are discussed and probably a new Alveolina species A. n.sp are described and figured.