Pan, H.-Z.; Shen, S.-Z. (2008). Late Permian (Lopingian) gastropods from the Qubuerga Formation at the Qubu section in the Mt. Everest (Qomolangma) Region, Southern Tibet (Xizang), China. Journal of Paleontology. 82(5): 1038-1042.
Late Permian (Lopingian) gastropods from the Qubuerga Formation at the Qubu section in the Mt. Everest (Qomolangma) Region, Southern Tibet (Xizang), China