D'autras lengas atudadas e pauc atestadas fuguèsson estacadas a la familha chapacurana. Son los parlars de los grops uomo, urunamakan, matawa, herisobocona e aricoroni [2].
(en) Joshua Birchall, Michael J. Dunn, Simon J. Greenhill, 2016, A Combined Comparative and Phylogenetic Analysis of the Chapacuran Language Family, International Journal of American Linguistics, 82:3, p. 255-284.