Abundance: 1.08 to 22.22% (median 2.56%)

Latitudinal range: 44.9° to 54.8°

Habitats: (6) only

Found in 6 samples

Canada: Swan Hills Locality 1 (Late Palaeocene), Who Nose (Early Palaeocene)

United States: Gidley Quarry (Early Palaeocene), Rock Bench Quarry (Early Palaeocene), Bangtail (Middle Palaeocene), Hiatt (Early Palaeocene)

See also Neoplagiaulacidae indet., Neoplagiaulacidae indet. 1, Neoplagiaulacidae indet. 2