Discovery of Middle-Upper Triassic holothurian sclerites from Yongning,Guanling,Guizhou贵州关岭地区中—上三叠统海参骨片化石的首次发现
FINDING OF THE LATE TRIASSIC HOLOTHURIAN SCLERITES FROM THE MUJIUCUO AREA IN XIANZA (SHENZHA) COUNTY, NORTH TIBET AND西藏申扎县木纠错地区晚三叠世海参骨片化石的发现及其地质意义