(Fig. 5) Stratigraphic distribution of upper Eocene through lowermost Miocene...
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Species abundance: V = very abundant, A = abundant, C = common, F = few, R = rare, - = not present
物种丰度（Species abundance）：V代表极丰富，A代表丰富，C代表常见，F代表少量，R代表稀有，-代表未检出
