Figure 7. Age-depth relationships of biostratigraphic markers of calcareous nannofossils at Site 994 (dashed line), Site 995 (thin solid line), and Site 997 (thick solid line). Vertical error bars show sample interval uncertainties, and the box indicates combinations of sample interval uncertainty and age uncertainty. The horizontal bar at the bottom of the figure indicates the range of Amaurolithus amplificus.

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