Abundance: 0.91 to 12.32% (median 1.01%)

Latitudinal range: 43.3° to 46.2°

Habitats: (3) only

Found in 3 samples

United States: Scarritt Quarry (Early Palaeocene), Cedar Point Quarry (Late Palaeocene), Shotgun (Carnegie Museum) (Middle Palaeocene)

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