Abundance: 1.08 to 3.33% (median 1.78%)

Latitudinal range: 44.9° to 54.8°

Habitats: (3) only

Found in 3 samples

Canada: Swan Hills Locality 1 (Late Palaeocene)

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

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