西秦岭杨河-固城一带原“泥盆系“中发现早石炭世化石
서진령양하-고성일대원“니분계“중발현조석탄세화석
Discovery of Early Carboniferous Strata from the "Devonian" Strata of Yanghe, Wushan and Gucheng, Lixian, Western Qinling
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