	Authors	Year	Title
	Liang & Liu	1987	New material of Carboniferous ammonoids from Xizang and Xinjiang. Acta Paleontologica Sinica, 26 (6): 735-745, fig.1-11, pl.1-3; Beijing.
	Sheng & Liu	1983	Early Permian ammonites fauna from Jiajia area, Xizang (Tibet). The geology of the Qinghai-Xizang (Tibet) Plateau: 237-252, fig.1-11, pl.20; Beijing.