1. BGMRH (Bureau of Geology and Mineral Resources of Heilongjiang). Regional Geology of Heilongjiang Province (Geological Publishing House, 1993).
2. Z. M. Dong, Z. L. Zhou, and S. Y. Wu, “Note on a hadrosaur footprint from Heilongjiang River area of China,” Vert PalAsiat. 41(4), 324–326 (2003).
3. R. Q. Gao, C. B. Zhao, X. Y. Qiao, et al., Cretaceous Oil Strata Palynology from Songliao Basin (Geological Publishing House, Beijing, 1999).
4. P. Godefroit, P. Lauters, J. Van Itterbeeck, Y. L. Bolotsky, et al., “Recent advances on the study of hadrosaurid dinosaurs in Heilongjiang (Amur) River area between China and Russia,” Global Geol. 14(3), 160–191 (2011).
5. V. S. Markevitch, “Palynological zonation of the continental Cretaceous and lower Tertiary of eastern Russia,” Cretaceous Res. 15, 165–177 (1994).