(Table 5) Distribution of late Eocene to Miocene calcareous nannofossils in O...

Species abundance: V = very abundant, A = abundant, C = common, F = few, R = rare, - = absent.物种丰度（Species abundance）分级标准为：V = 极丰富（very abundant），A = 丰富（abundant），C = 常见（common），F = 稀少（few），R = 稀有（rare），"-" = 缺失（absent）。