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Calcareous nannofossil zonation of the Jurassic-Cretaceous boundary interval and correlation with the geomagnetic polarity timescale

Marine GeologyGeomagnetic Polarity TimescaleEngineeringCretaceous PeriodGeologyGeodesyGeochronologyCalcareous Nannofossil ZonationCretaceous-paleogene BoundaryJurassic-cretaceous Boundary IntervalGeologic Time ScaleEarth ScienceTectonics