Phyletic gradualism bibliography

Eldredge, N., and Gould, S. J., 1972, Punctuated Equilibria: An Alternative to Phyletic Gradualism, in Schopf, T. M., ed., Models in Paleobiology: San Francisco, Freeman, Cooper, & Co., p. 82-115; 250 pp.

Gingerich, P. D., 1980, Evolutionary patterns in early Cenozoic mammals: Annual Review of Earth and Planetary Sciences, v. 8, p. 407-424.

Gould, S. J., 1984, Toward the Vindication of Punctuational Change, in Berggren, W. A., and Van Couvering, J. A., eds., Catastrophes and Earth History: The New Uniformitarianism: Princeton, New Jersey, Princeton University Press, p. 9-34.