Liangshan Town in Hangzhong City, Shaanxi Province (106.995, 33.081, Nanzheng Formation)
Li, J.J., Chen, H.J. 1988. Graptolites from Nancheng Formation at Liangshan, Hanzhong of Shaanxi. Acta Palaeontologica Sinica, 27(2): 164-178.