Ekdale, A. A. (1980): Trace fossils in Deep Sea Drilling Project Leg 58 cores. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Klein, George de Vries, Kobayashi, Kazuo, Chamley, Herve, Curtis, Doris, Dick, Henry, Echols, Dorothy Jung, Fountain, David M., Kinoshita, Hajimu, Marsh, Nicholas G., Mizuno, Atsuyuki, Nisterenko, Gennady V., Okada, Hisatake, Sloan, Jon R., Waples, Douglas, White, Stan M., Stout, Larry N. (editor), Leg 58 of the cruises of the drilling vessel Glomar Challenger; Yokahama, Japan to Okinawa, Japan; December, 1977-January, 1978, 58, 601-605, georefid:1981-011414