Inland foraminifer fossils are considered as one of good indicators of marine facies.
内陆有孔虫化群被一些学者视为是海侵或残留海指相化。
Inland foraminifer fossils are considered as one of good indicators of marine facies.
内陆有孔虫化群被一些学者视为是海侵或残留海指相化。
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