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jmdict 2100610 Active (id: 2145720)
示準化石
しじゅんかせき
1. [n] {geology,paleontology}
▶ index fossil
▶ zone fossil
▶ guide fossil
▶ indicator fossil



History:
5. A 2021-09-02 11:16:45  Jim Breen <...address hidden...>
4. A* 2021-09-02 10:44:55  Robin Scott <...address hidden...>
  Refs:
gg5
https://en.wikipedia.org/wiki/List_of_index_fossils
https://www.collinsdictionary.com/dictionary/english/zone-fossil
  Diff:
@@ -12,3 +12,6 @@
-<gloss>index fossil (fossil which suggests a date of the formation of a rock stratum)</gloss>
-<gloss>key fossil</gloss>
-<gloss>leading fossil</gloss>
+<field>&geol;</field>
+<field>&paleo;</field>
+<gloss>index fossil</gloss>
+<gloss>zone fossil</gloss>
+<gloss>guide fossil</gloss>
+<gloss>indicator fossil</gloss>
3. A 2021-09-01 06:53:41  Jim Breen <...address hidden...>
  Comments:
Well caught.
2. A* 2021-09-01 06:33:23  Opencooper
  Refs:
示準化石	2369
しじゅんかせき	50 <- J-Es; kokugos; encyclopedias; forvo
じじゅんかせき	No matches <- no relevant web hits
  Diff:
@@ -8 +8 @@
-<reb>じじゅんかせき</reb>
+<reb>しじゅんかせき</reb>
1. A 2006-09-06 00:00:00 
  Comments:
Entry created

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