Abundance: 1.52 to 18.39% (median 8.26%)

Latitudinal range: 29.6° to 44.3°

Habitats: (12) only

Found in 12 samples

United States: Fossil Butte (FB-16) (Early Eocene), Buck Spring Quarries (B-2 horizon) (Early Eocene), North Fork of Owl Creek (UW V-79004) (Middle Eocene), East of Whistler Squat Quarry (Middle Eocene), UCMP locality V77064 (Early Eocene), Green Locality (Early Eocene), Lightning Butte (Early Eocene), Someday (Early Eocene), Deadman Butte (Early Eocene), Donna's Locality (Middle Eocene), Fantasia (Early Eocene), Jack Creek (Early Eocene)

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