(Table 5) Distribution of the large, few-chambered Globigerinelloides species...

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...洗过样本的频度分级：vr（Very Rare，极罕见，仅1份标本）；r（Rare，罕见，2~3份标本）；r/f（Rare to Few，罕至少见，4~5份标本）；f（Few，少见，6~8份标本）；f/c（Few to Common，少至常见，9~12份标本……