Abundance: 0.15 to 50.00% (median 2.63%)
Latitudinal range: 41.5° to 51.1°Habitats: (15) only
Found in 15 samples
Canada: Son of Burr (Early Palaeocene), Narcissus (Early Palaeocene), Who Nose (Early Palaeocene)
United States: Purgatory Hill (Early Palaeocene), 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), Little Muddy Creek (Middle Palaeocene)
See also Chriacus badgleyi, Chriacus baldwini, Chriacus calenancus, Chriacus oconostotae, Chriacus pelvidens, Chriacus punitor, Chriacus sp.