Uhen, Mark D. New middle Eocene whales from the Pisco Basin of Peru - New York Cambridge University Press | The Paleontological Society September 2011 - pp. 955-969 ilus. ISSN: 0022-3360 Subjects--Topical Terms: CETACEAEOCENOFILOGENIA Subjects--Geographic Terms: ICAPERUPISCO Subjects--Index Terms: FORMACION PISCO