(Table 4) Distribution of the large, few-chambered Globigerinelloides species in the Cismon core

Frequency classes (washed samples), vr, very rare (1 specimen); r, rare (2-3 specimens); r/f, rare to few (4-5 specimens); f, few (6-8 specimens); f/c, few to common (9-12 specimens); c, common (13-16 specimens); c/a, common to abundant (17-20 specimens); a, abundant (21-25 specimens); va, very abundant (>25 specimens); x occurrence in thin section. - = absent. Depth, sediment is meters below well head.

（洗选样品的）丰度分级标准如下：vr（very rare，极稀有）：仅1份标本；r（rare，稀有）：2~3份标本；r/f（rare to few，稀至极少量）：4~5份标本；f（few，少量）：6~8份标本；f/c（few to common，少量至常见）：9~12份标本；c（common，常见）：13~16份标本；c/a（common to abundant，常见至富集）：17~20份标本；a（abundant，富集）：21~25份标本；va（very abundant，极富集）：标本数量大于25份；符号x表示在薄片中出现。符号“-”代表缺失。沉积物深度以井口下方的米数为计量单位。