Jurassic Biostratigraphic Sequence in the Middle of Northern Tibet.
遼西地區(qū)白堊紀(jì)火山巖層序探討.
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Trilobites were rapidly evolving forms and are of widespread use in biostratigraphic studies.
三葉蟲是進(jìn)化迅速的種型,并廣泛用在生物地層學(xué)的研究上.
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