Template:Zullo, 1984b
- Zullo, V.A. 1984: Barnacles from the Old Church Formation, Pamunkey River region. IN Ward, L. W.; Krafft, K. eds. Stratigraphy and paleontology of the outcropping Tertiary beds in the Pamunkey River region, central Virginia Coastal Plain: Atlantic Coastal Plain Geological Association Guidebook, 1984 field trip, p. 192-197.