Meaning of じじゅんかせき in Japanese

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じじ ゅんかせき

  1. Words

Definition of じじゅんかせき

じじゅんかせき(jijunkaseki) 【 示準化石 】

示準化石 Kanji Details

  1. (n) index fossil (fossil which suggests a date of the formation of a rock stratum); key fossil; leading fossil
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