Abundance: 0.26 to 5.00% (median 0.96%)

Latitudinal range: 46.2° to 47.1°

Habitats: (3) only

Found in 3 samples

United States: Scarritt Quarry (Early Palaeocene), Douglass Quarry (Middle Palaeocene), Hiatt (Early Palaeocene)

See also Neoplagiaulax, Neoplagiaulax grangeri, Neoplagiaulax hazeni, Neoplagiaulax hunteri, Neoplagiaulax jepi, Neoplagiaulax kremnus, Neoplagiaulax nelsoni