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Figure F5. Quaternary through Paleocene chronostratigraphic units correlated with planktonic foraminifer and calcareous nannofossil zonations and the geomagnetic polarity timescale. Timescales are from Berggren et al. (1995a) for the Cenozoic. Biozones are those of (1) Berggren et al. (1995a), (2) Blow (1969), (3) Jenkins (1985, 1993), (4) Martini (1971), and (5) Okada and Bukry (1980). Black bars = normal polarity, white bars = reversed polarity.

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