macroevolution

(-ev′ə lo̵̅o̅s̸hən)

noun

large-scale and long-range evolution involving the appearance of new genera, families, etc. of organisms

See macroevolution in American Heritage Dictionary 4

noun
Large-scale evolution occurring over geologic time that results in the formation of new taxonomic groups.

Related Forms:

  • macˌro·evˌo·luˈtion·arˌy (-shə-nĕrˌē) adjective

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