Sun 1981. The Mesozoic brachiopods from Xizang. Zhongguo Kexueyuan Qingzang Gaoyuan Zonghe Kexue Kaochadui. [The Series of the Comprehensive Scientific Expedition to the Qinghai-Xizang Plateau.] Xizang gushengwu [Palaeontology of Xizang.], Volume 3. Science Press, Peking, 1981: 345-348. Chapter pagination: 177-260