(Appendix E) Stratigraphic range and relative abundance of Paleogene planktonic foraminifera in ODP Hole 120-749B

Species abundance: A = abundant (>25%), C = common (16-24%), F = frequent (6-15%), R = rare (1-5%), + = present, - = absent, based on a random sample of 200-400 specimens from the >63 µm size fraction

物种丰度（Species abundance）分级标准如下：A代表丰富（abundant，占比＞25%），C代表常见（common，占比16%~24%），F代表频发（frequent，占比6%~15%），R代表稀有（rare，占比1%~5%）；符号“+”表示存在，“-”表示缺失。该分级基于从粒径＞63 µm的组分中随机抽取的200~400份标本。