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Microfossil abundance of Hole 21-206
Relative abundance: D = dominant, A = abundant, C = common, F = few, R = rare, T = trace, P = present (numerical values are abundance in percent) -
(Table 2) Silicoflagellate occurrences in late Oligocene samples of ODP Site ...
Biostratigraphic zone after Bukrey (1981): Naviculopsis biapiculata/Distephanus speculum haliomma