Abundance: 0.49 to 39.12% (median 4.12%)

Latitudinal range: 46.2° to 47.7°

Habitats: (4) only

Found in 4 samples

United States: Purgatory Hill (Early Palaeocene), Gidley Quarry (Middle Palaeocene), Scarritt Quarry (Middle Palaeocene), Douglass Quarry (Middle Palaeocene)

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