Download or read book Phylogenetic Systematics written by Willi Hennig and published by University of Illinois Press. This book was released on 1999 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phylogenetic Systematics, first published in 1966, marks a turning point in the history of systematic biology. Willi Hennig's influential synthetic work, arguing for the primacy of the phylogenetic system as the general reference system in biology, generated significant controversy and opened possibilities for evolutionary biology that are still being explored.