4. OLIGOCENE-MIOCENE CALCAREOUS NANNOFOSSIL BIOSTRATIGRAPHY AND PALEOECOLOGY FROM THE IBERIA ABYSSAL PLAIN
ABSTRACT
INTRODUCTION
METHODS
RESULTS
BIOSTRATIGRAPHY: APPLICATION OF THE MARTINI (1971) ZONATION AND ADDITIONAL BIOEVENTS
Oligocene/Miocene Boundary
Biohorizons
DISCUSSION
ACKNOWLEDGMENTS
REFERENCES
APPENDIX A
APPENDIX B
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