Abundance: 0.26 to 0.96%

Habitats: (2) only

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

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