09311067-n 'a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found';
 
汉语 标准 化石 , 标准化石
英语 index fossil , guide fossil
Indonesian petunjuk fosil
日语 示準化石
Definitions
英语
a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found
日语
見つかった岩層に日付を入れるのに用いられる特定の地質学的年齢に生きたために知られている化石
Relations
Hypernym: fossil
Semantic Field: objectn
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