首次于壤塘县曼迪乡上三叠统侏倭组的滑塌堆积层中，采获异地埋葬珊瑚群化石，建立三叠纪双壳类两个生物带；
The allopatric coral fossils are collected in the olistostromes of the Upper Triassic Zhuwo Formation in Mandi , Zamtang , and two biozones of Triassic bivalves are established .
壤塘县