Abundance: 0.21 to 25.94% (median 2.01%)

Latitudinal range: 41.8° to 46.2°

Habitats: (13) only

Found in 13 samples

United States: Scarritt Quarry (Early Palaeocene), Douglass Quarry (Middle Palaeocene), Rock Bench Quarry (Early Palaeocene), Cedar Point Quarry (Late Palaeocene), Princeton Quarry (Late Palaeocene), Bear Creek (Late Palaeocene), Holly's Microsite (Late Palaeocene), UMMP SC-4 (Early Eocene), UMMP SC-54 (Early Eocene), Chappo Type Locality (Late Palaeocene), Mark's Locality (Late Palaeocene), Divide Quarry (Middle Palaeocene), Croc Tooth Quarry (Late Palaeocene)

See also Thryptacodon antiquus, Thryptacodon australis, Thryptacodon orthogonius, Thryptacodon pseudarctos, Thryptacodon sp.