Boersma, Anne (1984): Oligocene and other Tertiary benthic foraminifers from a depth traverse down Walvis Ridge, Deep Sea Drilling Project Leg 74, Southeast Atlantic. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Hay, William W., Sibuet, Jean-Claude, Barron, Eric J., Brassell, Simon C., Dean, Walter E., Huc, Alain Y., Keating, Barbara H., McNulty, Charles L., Meyers, Philip A., Nohara, Masato, Schallreuter, Roger E. L., Steinmetz, John C., Stow, Dorrik A. V., Stradner, Herbert, Boyce, Robert E., Amidei, Rosemary (editor), Initial reports of the Deep Sea Drilling Project covering Leg 75 of the cruises of the drilling vessel Glomar Challenger, Walvis Bay, South Africa to Recife, Brazil, July-September, 1980, 75 (Part 2), 1273-1300, georefid:1985-008629