(Table 5) Stratigraphic distribution of calcareous nannofossils from DSDP Hol...
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Species abundance: R = rare (1-2 specimens), F = few (3-10 specimens), C = common (11-100 specimens), A = abundant (greater than 100 specimens), - = not observed; counting was...
物种丰度:R = 稀有种(1-2号标本),F = 少有种(3-10号标本),C = 常见种(11-100号标本),A = 优势种(标本数大于100),- = 未观测到;统计工作为……



