Abstract: It this study, ostracode biostratigraphy with the lithologic features of the Lower Miocene - Pliocene squences in Antakya and surrounding area has been investigated. 142 samples were taken from 7 measured stratigraphicsections. 120 ostracode species have been identified from the Lower Miocene - Pliocene sequence. The datumplane ofCarinocythereis and Cyprideis with Neomonoceratina helvetica - Aurila soummamensis Zone, Gökçen (1984) havebeen described with these species in the region. This zone and datumplanes have been correlated within the previously -studied Tethys - Paratethys regions and with contemporary sequences deposited in Turkey. When the environmentaldistribution of ostracodes was taken in  consideration, together with shallow marina fauna, that lagoonal environmentostracodes are effective from place to place, found from the beginning of the sequence to top, were established.