bioevent相关论文
桂林地区中、晚泥盆世的沉积包含了两个主要的环境旋回,从艾菲尔到维特期为一个旋回,从费拉斯到法门早期为另一个旋回。生物事件主......
Two significant biological and geological events happened during the Ordovician,i.e.,the great Ordovician biodiversifica......