The terms macroevolution and microevolution were first used by evolutionary Russian entomologist Iurii Filipchenko in a 1927 book titled Variabilitat und Variation. He asserted that micro- and macroevolution were processes involving different mechanisms and caliber. The terms were later introduced to English-speaking biological community in 1937 by Filipchenko's former student Theodosius Dobzhansky in Genetics and the Origin of Species.
	In the late 1930s, Dobzhansky helped devise the modern evolutionary synthesis, a neodarwinian view that attempted to reconcile Darwinism with mendelian genetics.[5] The modern synthesis accepted as one of its basic tenets the proposal that all evolution was best explained by a simple extrapolation from micro to macro-evolution. It was asserted that there is no fundamental distinction made between micro and macroevolution[6]
	Info Source:
	http://creationwiki.org/Macroevolution