Cophocetus is an extinct genus of baleen whale known from Miocene-aged marine strata in Oregon, North America.E. L. Packard and R. Kellogg. 1934. A new cetothere from the Miocene Astoria Formation of Newport, Oregon. Contributions to Palaeontology Carnegie Institution of Washington 3-62Ray, C. E. (Department of Paleobiology, Smithsonian Institution, Washington, D. C. 20560) 1976. Fossil Marine Mammals of Oregon. Syst. Zool. 25:420–436.M. D. Uhen, R. E. Fordyce, and L. G. Barnes. 2008. Mysticeti. In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), Evolution of Tertiary Mammals of North America II:607-628.
