Principles of benthic marine paleoecology / Arthur J. Boucot ; with contributions on bioturbation, biodeposition, and nutrients by Robert S. Carney. Boucot, A. J. (Arthur James), 1924- Paleoecology. Marine ecology. QE720 .B68 560.92 BOP Includes index. Bibliography: p. 409-445. New York : Academic Press, 1981. 1981. 1981 Text xv, 463 p. : eng