Wang & He 1976. Triassic ammonoids from the Mount Jolmo Lungm region. Zhumulangmafeng diqu kexue kaocha baogao 1966-1968. [A report of scientific expedition in the Mount Jolmo Lungma [Everest] region.] Palaeontology. Fasc. 3., Science Press, Peking, 1976: 211-214. Chapter pagination: 223-502