EVOLUTION LINEAGE OF CONODONT ANCYRODELLA AND THE MIDDLE UPPER DEVONIAN BOUNDARY AT LIUJING, GUANGXI
EVOLUTION LINEAGE OF CONODONT ANCYRODELLA AND THE MIDDLE UPPER DEVONIAN BOUNDARY AT LIUJING, GUANGXI
牙形石Ancyrodella早期演化与广西六景中上泥盆统界线
EVOLUTION LINEAGE OF CONODONT ANCYRODELLA AND THE MIDDLE UPPER DEVONIAN BOUNDARY AT LIUJING, GUANGXI
牙形石Ancyrodella早期演化与广西六景中上泥盆统界线