(Table 6) Distribution of late Eocene calcareous nannofossils in ODP Hole 149-899B@en

Species abundance: V = very abundant (> 10 specimens per field of view, A = abundant (1 to 10 specimens per field), C = common (1 specimen per 2 to 10 fields), F = few (1 specimen per 11 to 50 fields), R = rare (1 specimen per 51 to 200 fields), - = not present. Sediment depth is given in mbsf.物种丰度分级规则如下：V代表极丰富（每视野内标本量>10个），A代表丰富（每视野内有1~10个标本），C代表常见（每2~10个视野内出现1个标本），F代表稀少（每11~50个视野内出现1个标本），R代表极罕见（每51~200个视野内出现1个标本），符号“-”表示未检出。沉积物深度单位为海底以下米（meters below seafloor，缩写mbsf）。