Dowsett, Harry J.; Gosnell, Linda B.; Poore, Richard Z. (1988): Pliocene planktonic foraminifer census data from Deep Sea Drilling Project holes 366A, 410, 606, and 646B. U. S. Geological Survey, Reston, VA, United States, Open-File Report - U. S. Geological Survey, OF 88-0654, 14 pp., georefid:1989-031368