Full reference: P. D. Gingerich. 1987. Early Eocene bats (Mammalia, Chiroptera) and other vertebrates in freshwater limestones of the Willlwood Formation, Clark's Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(11):275-320
Type specimen: UM 76910, a mandible (right dentary with P4, M1 (part), and M2). Its type locality is Discovery Site, which is in a Clarkforkian wet floodplain wackestone in the Willwood Formation of Wyoming.
Ecology: scansorial insectivore
Average measurements (in mm): M1 1.45 x 1.50, M2 1.30 x 1.70, M3 0.850 x 1.350, m1 1.25 x 0.85, m2 1.20 x 0.80