Latitudinal range: 29.6° to 34.3°

Found in two samples

United States: Whistler Squat Quarry (Middle Eocene), Simi Valley Landfill (2000s collection) (Middle Eocene)

See also Herpetotherium, Herpetotherium fugax, Herpetotherium knighti, Herpetotherium marsupium, Herpetotherium valens, Herpetotherium youngi