Biotic crises in ecological and evolutionary time / edited by Matthew H. Nitecki. Spring Systematics Symposium (3rd : 1980 : Field Museum of Natural History) Nitecki, Matthew H. Field Museum of Natural History. National Science Foundation (U.S.) Natural disasters Environmental aspects Congresses. Evolution (Biology) Congresses. Ecology Congresses. QH545.N3 S65 1980 575 19 NIB "Proceedings of the third annual Spring Systematics Symposium: Biotic Crises in Ecological and Evolutionary Time, held at the Field Museum of Natural History, Chicago, Illinois, May 10, 1980, sponsored by the Field Museum of Natural History and the National Science Foundation. Includes bibliographical references and indexes. Bibliography: p. New York : Academic Press, c1981. c1981. 1981 Text xii, 301 p. : eng