Full reference: G. G. Simpson. 1925. Mesozoic Mammalia 1. American triconodonts: part 2. American Journal of Science, series 5 10:334-358
Type specimen: YPM 10349, a maxilla (part of left maxilla and jugal with crowns of the first three molars and alveoli for the last molar and the last premolar). 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