Complex sentence: A broad consensus among systematists has emerged that bryophytes are not a natural group (i.e. are paraphyletic) but that each of the three extant groups is monophyletic.
Split into simpler sentences: A broad consensus among systematists has recently emerged that bryophytes are not a natural group (i.e. are paraphyletic). Systematists further generally agree that each of the three extant groups is monophyletic.