1. Badamgarav, D.;Dashzeveg, D.;Devyatkin, E.V.;Zhegallo, V. I. &Liskun, I.G. 1975. The stratigraphy of the Paleogene and Neogene in the Valley of Lakes (on the question of separations of stratotypical regions of Paleogene and Neogene in Central Asia).- The Joint Soviet-Mongolian Paleontological Expedition, Transactions.-2: 250–268, Moscow, [in Russian].
2. Berggren, W. A.;Kent, D.V.;Swisher III,C. C. &Aubry, M.-P. 1995. A revised Cenozoic Geochronology and Chronostratigraphy.- [In:]Berggren, W. A.;Kent, D. V. &Hardenbol, J. [eds.] Geochronology, Time Scale, and Global Stratigraphic Correlations: A Unified Temporal Framework for an Historical Geology.-Society of Economic Paleontologists and Mineralogists Special Publication54: 129–212, Tulsa/Okl.
3. Bryant, J. D. &Mc Kenna, M. 1995. Cranial Anatomy and Phylogenetic Position ofTsaganomys altaicus (Mammalia Rodentia) from the Hsanda Gol Formation (Oligocene), Mongolia.- American Museum Novitates3156: 1–42, New York.
4. Dashzeveg, D. 1970. Stratigraphy and fauna of the Upper Paleogene of Mongolian People’s Republic.- Bulletin Geological Institute of the Mongolian Academy of Sciences1: 45–56, Moscow, [in Russian].
5. — 1996. Some Carnivorous Mammals from the Paleogene of the Eastern Gobi Desert, Mongolia, and the Application of Oligocene Carnivores to Stratigraphie Correlation.- American Museum Novitates3179: 1–14, New York.