Punctuated gradualism

Punctuated gradualism

Punctuated gradualism is a macroevolutionary hypothesis that refers to a species that has "relative stasis over a considerable part of its total duration [and] underwent periodic, relatively rapid, morphologic change that did not lead to lineage branching". [ [http://paleobiol.geoscienceworld.org/cgi/content/abstract/9/4/377 GeoScienceWorld] article "Evidence for punctuated gradualism in the late Neogene Globorotalia tumida lineage of planktonic foraminifera"]

ee also

*Phyletic gradualism
*Punctuated equilibrium

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