Resig, Johanna M. Foraminifera encrusting phosphoritic hardgrounds of the peruvian upwelling zone: taxonomy, geochemistry, and distribution - Cambridge, MA Cushman Foundation for Foraminiferal Research April 1997 - pp. 133-150 láms. Subjects--Topical Terms: FORAMINIFERAFOSFORITASMARGEN CONTINENTAL Subjects--Geographic Terms: PERU