Megaevolution

Megaevolution

 

the totality of the evolutionary processes that determine the formation of the major taxons (in animals and plants, taxonomic categories higher than the order). The term “megaevolution” was introduced by the American biologist G. G. Simpson in 1944. Because he was unable to suggest any processes or mechanisms distinguishing megaevolution from macroevolution, the term did not survive.

References in periodicals archive ?
Phylogeny of choanozoa, apusozoa, and other protozoa and early eukaryote megaevolution.
Phylogeny of choanozo, apusozoaoa, and other protozoa and early eukaryote megaevolution.