Full reference: G. G. Simpson. 1927. Mesozoic Mammalia. VI. Genera of Morrison pantotheres. American Journal of Science 13:409-416
Type specimen: YPM 13719, a mandible (left mandible with I3-4, C, P1-3 and M1-8). Its type locality is Quarry 9, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian fluvial-lacustrine mudstone/sandstone in the Morrison Formation of Wyoming.
Ecology: scansorial insectivore