Paraphyly and (yeast) classification Lachance, Marc-André,, 66, 4924-4929 (2016), doi = https://doi.org/10.1099/ijsem.0.001474, publicationName = Microbiology Society, issn = 1466-5026, abstract= Yeast systematics has wholeheartedly embraced the phylogenetic approach. Central to this has been the unspoken convention that taxa at all ranks be strictly monophyletic. This can result in a proliferation of small genera and instances of nomenclatural instability, counter to the expected benefit of phylogenetic systematics. But the literature abounds with examples, at all taxonomic levels, where paraphyly is a reality that can no longer be ignored. The very concepts of Bacteria or Archaea, under the constraint of monophyly, are in peril. It is therefore desirable to effect a shift in practices that will recognize the existence of paraphyletic taxa., language=, type=