Abundance: 0.70 to 15.10% (median 3.92%)

Latitudinal range: 34.3° to 49.7°

Habitats: (5) only

Found in 5 samples

Canada: Kealey Springs West (Late Eocene)

United States: Rabbit Graveyard (Green Marker Level) (Early Oligocene), Rabbit Graveyard (Lumpy Level) (Early Oligocene), Simi Valley Landfill (2000s collection) (Middle Eocene), Dry Gulch Creek Member (SDSNH Locality 5939) (Middle Eocene)

See also Heliscomys hatcheri, Heliscomys sp., Heliscomys walshi