The Cricetidae (Rodentia, Mammalia) from the Ulantatal area (Inner Mongolia, China): New data concerning the evolution of Asian cricetids during the Oligocene

► Description of one of the most important muroid fauna from the Oligocene of Asia. ► Derived morphological trends of the Ulantatal fauna reinforced an Asian origin for the muroid diversification. ► New evidence of Paleogene faunal exchanges between Asia and Europe via the Paratethyan pathway.