(Table 6) Distribution chart of calcareous nannofossils of ODP Hole 135-837A

Species abundances per traverse: R = rare (1-5 specimens), S = rare to frequent (6-15 specimens), F = frequent (16-35 specimens), M = frequent to common (36-75 specimens), C = common (76-150 specimens), L = common to abundant (151-300 specimens), A = abundant (301-600 specimens), V = very abundant (601-1000 specimens), W = very very abundant (1001-2000 specimens), X = extra abundant (over 2000 specimens). - = absent.

各采样测线的物种种群丰度定义如下：R = 稀有（标本量1~5件），S = 稀至常见（标本量6~15件），F = 常见（标本量16~35件），M = 常见至普遍（标本量36~75件），C = 普遍（标本量76~150件），L = 普遍至丰盛（标本量151~300件），A = 丰盛（标本量301~600件），V = 极丰盛（标本量601~1000件），W = 超极丰盛（标本量1001~2000件），X = 特丰盛（标本量超过2000件）；- = 缺失（无标本）