Jenkins, D. G.; Houghton, Simon D. (1989): Late Miocene to Pleistocene planktonic foraminifers from Ocean Drilling Program Site 677, Panama Basin. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Mazzullo, Elsa Kapitan (editor), Becker, Keir, Sakai, Hitoshi, Merrill, Russell B., Adamson, Andrew C., Alexandrovich, Joanne, Alt, Jeffrey C., Anderson, Roger N., Bideau, Daniel, Gable, Robert, Herzig, Peter M., Houghton, Simon, Ishizuka, Hideo, Kawahata, Hodaka, Kinoshita, Hajimu, Lovell, Michael A., Malpas, John, Masuda, Harue, Morin, Roger H., Mottl, Michael J., Pariso, Janet E., Pezard, Philippe, Phillips, Joseph, Sparks, Joel, Uhlig, Stefan, Costa Rica Rift; covering Leg 111 of the cruises of the drilling vessel JOIDES Resolution, Bridgetown, Barbados, to Callao, Peru, sites 504, 677, and 678, 16 August 1986-20 October 1986, 111, 289-293, georefid:1991-030849