Houghton, Simon D. (1989): Late Neogene calcareous nannofossil biostratigraphy and paleoceanography of ODP Hole 677A, 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, 277-285, georefid:1991-030848