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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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