Latitudinal range: 42.3° to 43.2°

Found in 4 samples

United States: Buck Spring Quarries (B-2 horizon) (Early Eocene), Lightning Butte (Early Eocene), Someday (Early Eocene), Deadman Butte (Early Eocene)

See also Microsyops, Microsyops annectens, Microsyops elegans, Microsyops knightensis, Microsyops latidens, Microsyops sp.