Latitudinal range: 41.9° to 43.2°

Found in 4 samples

United States: Fossil Butte (FB-16) (Early Eocene), UCMP locality V77064 (Early Eocene), Someday (Early Eocene), Deadman Butte (Early Eocene)

See also Bunophorus grangeri, Bunophorus macropternus, Bunophorus sinclairi, Bunophorus sp. A