Benthic foraminiferal biostratigraphy of the south caribbean .

南加勒比海的深海有孔虫目生物地层学。

Correlations of strata can be aided by studying their fossil content , a discipline called biostratigraphy .

地层对比可由研究其中所含化石而得到助益，此一学科即称为生物地层学。