Noun
evolution on a large scale extending over geologic era and resulting in the formation of new taxonomic groups
Source: WordNetAn example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs, when now viewed at a distance from the future, although as they arose the developing changes would be deemed microevolution. Source: Internet
Hence, use of the term "macroevolution" is sometimes wrongly used as a litmus test of whether the writer is "properly" neo-Darwinian or not. Source: Internet
Nicholas Matzke and Paul R. Gross have accused creationists of using "strategically elastic" definitions of micro- and macroevolution when discussing the topic. Source: Internet
Origin of the term Russian entomologist Yuri Filipchenko first coined the terms "macroevolution" and "microevolution" in 1927 in his German language work, "Variabilität und Variation". Source: Internet
Over time, this process can result in populations that specialise for particular ecological niches ( microevolution ) and may eventually result in the emergence of new species ( macroevolution ). Source: Internet
The actual definition of macroevolution accepted by the vast majority of citation scientists is "any change at the species level or above" (phyla, group, etc.) and microevolution is "any change below the level of species." Source: Internet