Latitudinal range: 37.4° to 49.3°

Found in 4 samples

Canada: Gryde (Maastrichtian)

United States: Spigot-Bottle (Maastrichtian), Mill Creek (MNA locality 1074) (Maastrichtian), Paul's Locality (Santonian)

See also Cimolomys gracilis, Cimolomys milliensis, Cimolomys sp.