Latitudinal range: 42.8° to 49.6°

Found in 7 samples

Canada: Southfork Quarry (Late Eocene)

United States: Brecht Ranch (Late Eocene), Dead Horse (Early Oligocene), Rabbit Graveyard (Green Marker Level) (Early Oligocene), Rabbit Graveyard (Lumpy Level) (Early Oligocene), Bartlett High (Early Oligocene), Bloom Basin (BADL-LOC-0293) (Early Oligocene)

See also Leptomeryx blacki, Leptomeryx evansi, Leptomeryx sp., Leptomeryx yoderi