Abundance: 0.13 to 13.84% (median 1.45%)

Latitudinal range: 42.2° to 51.1°

Habitats: (13) only

Found in 13 samples

Canada: Narcissus (Early Palaeocene), Who Nose (Early Palaeocene), Police Point (Middle Palaeocene)

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

See also Ignacius fremontensis, Ignacius frugivorus, Ignacius graybullianus, Ignacius sp.