UPPER CRETACEOUS (MAESTRICHTIAN) BENTHIC FORAMINIFERA FAUNA IN THE OSMANİYE (ADANA) REGION

Abstract

In this paper general information is presented on the regional stratigraphy on the base of the data gathered by studying the bentic foraminifera present in the Upper Cretaceous (Macstrichtian) sediments of the Osmaniye (Adana) region. Mesozoic ophiolite unit forms the basement in the region. Middle-Upper Maestrichtian sediments which include clayey and micritic limestones disconformably overlie the ophiolite. In this clayey limestone bentic foraminiferas such as Lofiusia morgani Douville, L. baykali Meriç, L. oktayi Meriç, L kahtaensis Meriç, Orbitoides medius (d'Archiac), O. triangularis Checcia-Rispoli, Omphalocyclus macroporus (Lamarck), Siderolites calcilrapoides Lamarck and S. cf. denticulatus Douville have been identified. At the top Miocene sediments overlie the Middle-Upper Maestrichtian sediments with an unconformity.