Middle Eocene to early Oligocene nannofossils and palynomorphs from the Landzhar section, southern Armenia: Zonal stratigraphy and paleoecology

Abstract

The results of the study of nannofossils and palynomorphs from the Landzhar section in southern Armenia were used to correlate bioevents of two groups of microorganisms, recognize zonal subdivisions, and identify variations in the assemblage compositions reflecting changes in the hydrology and sedimentation regime in the basin during the middle Eocene to early Oligocene.