Preliminary discussion on bivalves assemblages and their environments of the Bagong Formation of Upper Triassic in Gelad长江源各拉丹冬地区上三叠统巴贡组双壳类组合与环境初探
BIVALVES (MOLLUSCA) OF TUNG-TING LAKE AND ITS SURROUNDING WATERS, HUNAN PROVINCE, CHINA洞庭湖及其周围水域的双壳类软体动物