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地质学报 1936
ONTHEOCCURRENCEOFARISTOCYSTISFAUNASINCHINAAbstract: ThepresentcollectionmadebyS.S.Yohin1927fromtheMiddleOrdovicianofKweichoucontainsfivespeciesofcystoids.Duringmyfurlough(1935-1936)IhadthechancetocomparethematerialwithJaekel'soriginalsinBerlin,Reed'soriginalsinCambridgefindhaveasaresultbeenabletodeterminethefollowingspeciesinour
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