W. G. Chaloner, & A. Hallam, (eds) 1994. Evolution and Extinction. Proceedings of a joint symposium of the Royal Society and the Linnean Society held on 9 and 10 November 1989. First published in Philosophical Transactions of the Royal Society of London, series B, 325, 239–488. First paperback edition; hardcover edition published 1989 by the Royal Society. xii + pp. 241–488. Cambridge, New York, Port Chester, Melbourne, Sydney: Cambridge University Press. Price £22.95, US $37.95 (paperback). ISBN 0 521 40646 3.