biostratigraphy

US [biost'rætiɡrəfɪ]
UK [bi:əʊst'ræti:ɡrəfɪ]
  • n.〔地〕生物地层学
  • Web化石生物层位学
n.
1.
〔地〕生物地层学

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Definition:
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Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard