(Figure 4) Distribution of upper Eocene-lower Oligocene sponge spicules from DSDP Hole 71-513A
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Abundance: A = abundant, C = common, F = few, R = rare, - = absent.
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Ivanik, Mikhail M创建时间：
1983-01-01
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Abundance: A = abundant, C = common, F = few, R = rare, - = absent.