Abundance: 0.49 to 39.12% (median 1.78%)

Latitudinal range: 44.7° to 47.7°

Habitats: (6) only

Found in 6 samples

United States: Purgatory Hill (Early Palaeocene), Gidley Quarry (Early Palaeocene), Scarritt Quarry (Early Palaeocene), Douglass Quarry (Middle Palaeocene), Cedar Point Quarry (Late Palaeocene), Princeton Quarry (Late Palaeocene)

See also Neoplagiaulax grangeri, Neoplagiaulax hazeni, Neoplagiaulax hunteri, Neoplagiaulax jepi, Neoplagiaulax n. sp., Neoplagiaulax nelsoni, Neoplagiaulax sp.