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Figure F15. Abundance and preservation of diatoms, radiolarians, and planktonic and benthic foraminifers, Site U1418. Black bars in the Biozone columns show the uncertainty in the depths of the observed biohorizons. The number within the black bars indicates the age of the biozone boundary. JM = Jaramillo. NPD = Neogene North Pacific Diatom zone of Yanagisawa and Akiba (1998), CM = California margin. Abundance: D = dominant, A = abundant, C = common, F = few, R = rare, P = present, B = barren. Preservation: VG = very good, G = good, M = moderate, P = poor.

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