Full reference: W. K. Gregory and G. G. Simpson. 1926. Cretaceous mammal skulls from Mongolia. American Museum Novitates 225:1-20
Sister taxon: Zalambdalestes grangeri
Type specimen: AMNH 21708, a partial skull. Its type locality is Shabarakh Usu (AMNH loc. 12049), which is in a Campanian eolian sandstone in the Djadokhta Formation of Mongolia.
Ecology: ground dwelling insectivore