(Table 6) Distribution of Pliocene calcareous nannofossils in ODP Hole 149-898A
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Species abundance: V = very abundant (>10 specimens per field of view at 1560 magnification), A = abundant (1-10 cpescimens per field), C = common (1 specimen per 2-10...
物种丰度:V级为极丰富(1560倍放大视野下,每个视野内标本数>10);A级为丰富(每个视野内有1~10个标本);C级为常见(每2~10个视野可见1个标本……)



