Climatic and environmental changes in the Paratethys during Oligocene traced by changes in calcareous nannoplankton assemblages (Molasse Basin, Austria and Kamchia Depression, Bulgaria)
Stjepan Ćorić (a) (a) Department of Sedimentology, Geological Survey of Austria, Neulinggasse 38, A-1030 Vienna, Austria. E-mail: stjepan.coric@geologie.ac.at