英语语法分析

The fossils of algae ostracoda foraminifer a gastropod and polychaeta were found in the tertiary carbonate beds in the west of chaidamu basin.

摘要柴达木盆地西部第三系的碳酸盐岩层中发现有藻类、介形虫、有孔虫、腹足类、多毛类等化石。