Abundance: 1.00 to 16.95% (median 7.69%)

Latitudinal range: 39.2° to 43.8°

Habitats: (5) only

Found in 5 samples

Mongolia: Bayan Ulan (IMM Arshanto Formation) (Early Eocene)

United States: North Fork of Owl Creek (UW V-78004) (Middle Eocene), Elderberry Canyon Quarry (Early Eocene), Green Locality (Early Eocene), Someday (Early Eocene)

See also Hyrachyus affinis, Hyrachyus crista, Hyrachyus eximius, Hyrachyus modestus