Bin Bai; Wang Yuan-Qing; Zhang Zhao-Qun 2017. The late Eocene hyracodontid perissodactyl Ardynia from Saint Jacques, Inner Mongolia, China and its implications for the potential Eocene–Oligocene boundary. Palaeoworld 27 (2): 247-257, 5 figs.
Jokela, T.; Eronen, J.; Kaakinen, A.; Liu, Liping; Passey, B.H.; Zhang Zhao-Qun; Fu Mingkai 2005. Translation of Otto Zdansky: The localities of the Hipparion Fauna of Baode County in Northwest Shanxi (1923). Palaeontologia Electronica 8 (1) 3A: 1-10, 10 figs. http://palaeo-electronica.org/paleo/2005_1/jokela3/issue1_05.htm
Zhang Zhao-Qun; Gentry, A.W.; Kaakinen, A.; Liu, L.P.; Lunkka, J.P.; Qiu Zhangxiang; Sen, S.; Scott, R.S.; Werdelin, L.; Zheng, S.H.; Fortelius, M. 2002. Land mammal faunal sequence of the late miocene of China: new evidence from Lantian, Shaanxi Province. Vertebrata PalAsiatica 40 (3): 165-176, figs. 1-2.
Fortelius, M.; Eronen, J.; Jernvall, J.; Liu, Liping; Pushkina, D.; Rinne, J.; Tesakov, A.S.; Vislobokova, I.A.; Zhang Zhao-Qun; Zhou, Liping 2002. Fossil mammals resolve regional patterns of Eurasian climate change over 20 million years. Evolutionary Ecology Research 4: 1005-1016, 3 figs..






