(Table 4) Distribution of nannofossil species in ODP Hole 110-674A

Species abundance: V = very abundant (>20 specimens per field of view), A = abundant (1-10 specimens per field), C = common (1 specimen per 2 to 10 fields), F = few (1...物种丰度（Species abundance）：V = 极丰富（每视野内标本量>20个），A = 丰富（每视野内1~10个标本），C = 常见（每2~10个视野见1个标本），F = 稀少（1……