(redirected from macroevolutionary)
Also found in: Thesaurus, Medical, Encyclopedia.


 (măk′rō-ĕv′ə-lo͞o′shən, -ē′və-)
Large-scale evolution occurring over a very long period time that results in the formation of new species and higher-level taxonomic groups.

mac′ro·ev′o·lu′tion·ar′y (-shə-nĕr′ē) adj.


(Biology) biology the evolution of large taxonomic groups such as genera and families
ˌmacroˌevoˈlutionary adj


(ˌmæk roʊˌɛv əˈlu ʃən; esp. Brit. -ˌi və-)

major evolutionary change of species and taxa.
mac`ro•ev`o•lu′tion•ar′y, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.macroevolution - evolution on a large scale extending over geologic era and resulting in the formation of new taxonomic groupsmacroevolution - evolution on a large scale extending over geologic era and resulting in the formation of new taxonomic groups
organic evolution, phylogenesis, phylogeny, evolution - (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms
References in periodicals archive ?
Key innovations, convergence, and success: Macroevolutionary lessons from plant phylogeny.
Not only did de Beer publish a wonderful monograph on the London specimen (1954, Archaeopteryx lithographica, British Museum, London, UK), but he used his analysis to postulate the important concept of mosaic evolution (1964, Advancement of Science 42:1-11) which is central to understanding macroevolutionary changes.
2014) first reviewed the tabulate occurrences in South China through this critical interval and briefly summarized its general macroevolutionary pattern across the Ordovician-Silurian boundary.
Then he moves into macroevolutionary patterns, where some of the most important evidence for evolution can be found.
A macroevolutionary explanation for energy equivalence in the scaling of body size and population density.
The authors argue that this distinction, held so vociferously by antievolutionists, simply breaks down over the eons as microevolutionary changes eventually elide into macroevolutionary changes and even new species (p.