(Figure 3b) Distribution of abundance of calcareous nannofossils at Site 17-167@en

Quantification of species abundance is as follows: rare: <5 specimens observed; few: 5-10 specimens; common: 10-50 specimens; abundant: >50specimens observed.物种丰度（species abundance）的量化分级标准如下：稀有（rare）：观测标本数少于5份；少见（few）：观测标本数为5至10份；常见（common）：观测标本数为10至50份；丰盛（abundant）：观测标本数多于50份。