(Figure 5) Stratigraphic ranges of selected planktonic foraminifers at ODP Ho...
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Species abundance: T = trace (one specimen), R = rare (<3%), F = few (3-15%), C = common (16-30%), A = abundant (>30%), P = present, samples with too few planktonic...
物种丰度(Species abundance)分级如下:T=痕迹种(trace,仅1份标本),R=稀有种(rare,<3%),F=少见种(few,3%~15%),C=常见种(common,16%~30%),A=丰度极高种(abundant,>30%),P=存在种(present),浮游生物样本量过少……



