Monophyletic Definition Monophyletic, or monophylogeny, is a term used to describe a group of organisms that are classified in the same taxon and share a most common recent ancestor. A monophyletic group includes all descendants of that most common recent ancestor. The word “mono-phylo-geny” literally translates from Greek into “one-tribe-origin.” A monophyletic taxon is also … Continue reading Monophyletic