Abundance: 0.15 to 5.39% (median 2.81%)

Latitudinal range: 44.7° to 46.2°

Habitats: (7) only

Found in 7 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)

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