 There is controversy in some cases as to whether all of these dialects/languages were part of the original Nyungar subgroup.Some may have been distinct languages and some may have belonged to neighbouring subgroups.Many linguists believe that the northernmost language shown, Amangu, was not part of the Nyungar subgroup, was instead a part of the Kartu subgroup, and may have been a dialect of the Kartu language Nhanda.