Synset:guide fossil
Hypernyms:fossil
Inherited Hypernyms:index fossilfossilremainsobjectphysical entityentity
| 单词 | index fossil |
| 释义 | Index Fossil nnoun.objecta fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found Synset:guide fossil Hypernyms:fossil Inherited Hypernyms:index fossilfossilremainsobjectphysical entityentity |
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