Alternative combinations: Phascolodon gidleyi, Phascolotheridium gidleyi
Full reference: G. G. Simpson. 1925. Mesozoic Mammalia 1. American triconodonts: part 2. American Journal of Science, series 5 10:334-358
Sister taxa: none
Type specimen: USNM 2703, a mandible (partial left mandible). 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: ground dwelling carnivore