生物地层学的 meaning in English

biostratigraphical

Trilobites were rapidly evolving forms and are of widespread use in biostratigraphic studies .
三叶虫是进化迅速的种型，并广泛用在生物地层学的研究上。
On the basis of extensive field investigations and laboratory analyses on the carboniferous strata and fossils in the west qinling . to the carboniferous of lixian , there has systematically been studied in the lithostratigraphy and biostratigraphy . at the same time , a diverse of fossils form this area have detailedly been described and discussed
在对西秦岭石炭纪地层和古生物化石资料进行广泛的野外收集和室内分析处理的基础上，对研究区石炭系进行了系统的岩石地层和生物地层学的划分和对比；对所获古生物化石进行了系统的描述和归属讨论，形成了一套内容丰富的西秦岭石炭纪地层古生物研究新资料。