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en.wikipedia.org/wiki/Punctuated_equilibrium

Punctuated equilibrium (also called punctuated equilibria) is a theory in evolutionary biology which proposes that once species appear in the fossil record they ...

www.pbs.org/wgbh/evolution/library/03/5/l_035_01.html

The concept of punctuated equilibrium was, to some, a radical new idea when it was first proposed by Stephen Jay Gould and Niles Eldredge in 1972. Now it is ...

www.dictionary.com/browse/punctuated-equilibrium

Punctuated equilibrium definition, theory of, Biology. a hypothesis holding that the evolution of species proceeds in a characteristic pattern of relative stability for  ...

palaeo-electronica.org/2007_3/books/equal.htm

Punctuated Equilibrium is a theory about how the evolutionary process works, based on patterns of first appearances and subsequent histories of species in the  ...

www.hup.harvard.edu/catalog.php?isbn=9780674024441

In 1972 Stephen Jay Gould took the scientific world by storm with his paper on punctuated equilibrium. Challenging a core assumption of Darwin's theory of ...

evolution.berkeley.edu/evolibrary/article/side_0_0/punctuated_01

More on punctuated equilibrium. Punctuated equilibrium is an important but often -misinterpreted model of how evolutionary change happens. Punctuated ...

www.merriam-webster.com/dictionary/punctuated%20equilibrium

Define punctuated equilibrium: evolution that is characterized by long periods of stability in the characteristics of an organism and short periods of…

www.amazon.com/Punctuated-Equilibrium-Stephen-Jay-Gould/dp/0674024443

In 1972 Stephen Jay Gould took the scientific world by storm with his paper on punctuated equilibrium, written with Niles Eldredge. Challenging a core ...

necsi.edu/projects/evolution/evolution/grad+punct/evolution_grad+punct.html

Gradualism and punctuated equilibrium are two ways in which the evolution of a species can occur. A species can evolve by only one of these, or by both.