macroevolution

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macroevolution Evolution above the species level, i.e. the development of new species, genera, families, orders, etc. There is no agreement as to whether macroevolution results from the accumulation of small changes due to microevolution, or whether macroevolution is uncoupled from microevolution.

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macroevolution Evolution above the species level (i.e. the development of new species, genera, families, orders, etc.). There is no agreement as to whether macroevolution results from the accumulation of small changes due to microevolution, or whether macroevolution is uncoupled from microevolution.

views updated

macroevolution Evolution above the species level, i.e. the development of new species, genera, families, orders, etc. There is no agreement as to whether macroevolution results from the accumulation of small changes resulting from microevolution, or whether macroevolution is uncoupled from microevolution.

views updated

macroevolution Evolution on a relatively large scale, involving, for example, the emergence of entire groups of organisms, such as the flowering plants or the mammals. Compare microevolution.