punctuated equilibrium(redirected from theory of punctuated equilibrium)
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Related to theory of punctuated equilibrium: Ronald Fisher
punctuated equilibriumthe theory that evolutionary change has occurred during short periods of rapid change punctuated by periods of stability Such a process would be characterized by the absence of an infinite range of intermediate forms, and supporters of the theory point to the vertebrate fossil record as evidence.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005