A revised proposal of Proto-Tukanoan consonants and Tukanoan family classification. Unpublished manuscript. Augmented with forms from Waltz, Nathan E., and Alva Wheeler. 1972. Proto-Tucanoan. In Esther Matteson (ed.), Comparative Studies in Amerindian Languages, 119-149. The Hague: Mouton. The forms from Walt and Wheeler have been changed by Cecil H. Brown to fit the phonological reconstructions of Chacon.