BIODIVERSITY AND PALEOECOLOGY OF THE MIOCENE CALCAREOUS NANNOPLANKTON FROM SIBIU AREA (TRANSYLVANIA, ROMANIA)

Abstract

1 Abstract The present study focuses on the biodiversity and paleoecology of the Miocene (Badenian, Sarmatian and Pannonian) calcareous nannoplankton from Dobârca, Apoldu de Sus and Vurpar (Sibiu area) which were compared with other known occurrences, especially from Alba Iulia area. The Badenian assemblages contain about 33 species belonging to 17 genera, and contain the marker species for NN5 and NN6 biozones (Martini, 1971), while the Sarmatian assemblages contain only few species of the genera Calcidiscus, Reticulofenestra, Rhabdosphaera, Coccolithus, a.o. The Pannonian assemblages contain especially species of the genera Noelaerhabdus and Isolithus, but sometimes in a great number of specimens.