Burdigalian-Langhian (Miocene) ostracod biostratigraphy and chronostratigraphy of the Kasaba Basin (Kas/Antalya), SW Turkey

In this investigation, 205 samples were collected from five measured strati graphic sections in the Kasaba Basin (Kas/Antalya, SW Turkey) and 16 genera and 33 species of ostracods were identified. Three different biozones have been recognized on the basis of the stratigraphic and geographic distribut ion of ostracod fauna in the measured sections which are, from bottom to to p, as follows: 1. Early-Middle Burdigalian age, Cytherella triestina Zone, 2. Late Burdigalian-Early Langhian age, Aurila soummamensis-Krithe papillos a Zone, 3. Langhian age, Cytherella vulgata-Xestoleberis reymenti Zone. The se zones have been correlated with the well known and widespread Neomonocer atina helvetica and Aurila soummamensis Zones of other Turkish and Mediterr anean Basins. The choronostratigraphic Burdigalian-Langhian correlation of the sequence has been established mainly by Ostracoda assemblages. The resu lts are integrated with the other faunal and floral occurrences observed du ring the investigation, which include planktonic and benthonic foraminifers , nannoplankton, Bivalvia, Gastropoda and corals. Thus, the Burdigalian (ea rly, middle, late) and Langhian stage boundary has been biostratigraphicall y identified.