Abundance: 0.15 to 5.39% (median 0.69%)

Latitudinal range: 41.5° to 46.2°

Habitats: (10) only

Found in 10 samples

United States: Gidley Quarry (Early Palaeocene), Silberling Quarry (Early Palaeocene), Scarritt Quarry (Early Palaeocene), Douglass Quarry (Middle Palaeocene), Rock Bench Quarry (Early Palaeocene), Cedar Point Quarry (Late Palaeocene), UMMP SC-67 (Early Eocene), Shotgun (Carnegie Museum) (Middle Palaeocene), Chappo Type Locality (Late Palaeocene), Big Multi Quarry (Late Palaeocene)

See also Chriacus badgleyi, Chriacus baldwini, Chriacus oconostotae, Chriacus pelvidens, Chriacus punitor, Chriacus sp.