Abundance: 0.40 to 18.71% (median 7.57%)

Latitudinal range: 41.5° to 49.6°

Habitats: (12) only

Found in 12 samples

Canada: Police Point (Middle Palaeocene)

United States: Douglass Quarry (Middle Palaeocene), Cedar Point Quarry (Late Palaeocene), Princeton Quarry (Late Palaeocene), Holly's Microsite (Late Palaeocene), UMMP SC-4 (Early Eocene), UMMP SC-54 (Early Eocene), UMMP SC-67 (Early Eocene), Shotgun (Carnegie Museum) (Middle Palaeocene), Chappo Type Locality (Late Palaeocene), Big Multi Quarry (Late Palaeocene), Mark's Locality (Late Palaeocene)

See also Ectocion cedrus, Ectocion collinus, Ectocion mediotuber, Ectocion osbornianus, Ectocion parvus, Ectocion sp.