Both a review and a perspective of the study on Neogene calcareous nannofossils of this region are given.
Both a review and a perspective of the study on Neogene calcareous nannofossils of this region are given.
评述了以往研究中存在的问题，明确了今后研究的方向与任务。
Both a review and a perspective of the study on Neogene calcareous nannofossils of this region are given.
评述了以往研究中存在的问题，明确了今后研究的方向与任务。