Willi Hennig

Willi Hennig

Emil Hans Willi Hennig (April 20, 1913 – November 5, 1976) was a German biologist who is considered the founder of phylogenetic systematics, also known as cladistics. With his works on evolution and systematics he revolutionised the view of the natural order of beings. As a taxonomist, he specialised in dipterans (ordinary flies and mosquitoes).