PaleoDB taxon number: 50393
Full reference: G. G. Simpson. 1928. A new mammalian fauna from the Fort Union of southern Montana. American Museum Novitates 297:1-15
Sister taxa: none
Type specimen: Amer. Mus. No. 22162, a mandible (left ramus with P3-4 and M1). Its type locality is Bear Creek, which is in a Clarkforkian terrestrial horizon in the Polecat Bench Formation of Montana.
Ecology: scansorial insectivore
Average measurements (in mm): m1 2.43 x 2.33