Reference
Reinhard Ziegler, Thomas Dahlmann, Gerhard Storch (2007): 4. Marsupialia, Erinaceomorpha and Soricomorpha (Mammalia) In: Daxner-Höck, Gudrun ed. Oligocene-Miocene Vertebrates from the Valley of Lakes (Central Mongolia): Morphology, phylogenetic and stratigraphic implications – Annalen des Naturhistorischen Museums in Wien – 108A: 53 - 164.