= guide fossil n. at guide, n. compounds 2.
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| 单词 | θ17819 |
| 释义 | the world > life > biology > organism > fossil > [noun] > characteristic of specific strata (4) index fossil1900 = guide fossil n. at guide, n. compounds 2. zone fossil1904 a fossil characteristic of a particular zone or belt of strata. facies fauna1923 fossil fauna characteristic of a facies. facies fossil1923 a fossil that is characteristic of a stratigraphic facies as a result of the restricted kind of environment tolerated by the original organism. |
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