Chipaya has over a thousand speakers and sees vigorous use in the native community, but all other Uru languages or dialects are extinct.
Loukotka (1968) also lists the Chango language, once spoken on the coast of Chile from Huasco to Cobija in Antofagasta Province. According to Loukotka that population would have been Araucanized at some point in history. More modern classifications leave it unclassified, as only proper names and placenames are known (Mason 1950).
Aguiló, F. (1986). El idioma de los Urus. Editora Centro Portales.
Cerrón-Palomino, R. (2011). Chipaya. Léxico y etnotaxonomía. Lima: PUCP.
Espinoza Soriano (1991). Proto-Takanan and Uru-Chipaya: genetic relationship or ancient loans? Comunicação apresentada em: Conferencia Internacional sobre Lenguaje, Política Oficial sobre el Lenguaje y Política Educativa en los Andes, 28–30 October 1991. Newark: University of Delaware.
Hannß, K. (2008). Uchumataqu: The lost language of the Urus of Bolivia. A grammatical description of the language as documented between 1894 and 1952 (ILLA, 7). Leiden: CNWS Publications.
Nimuendajú, K. (1928-1929). Wortliste der Šipáya-Indianer. Anthropos, 23:821-850, 24:863-896.
Snethlage, E. (1932). Chipaya- und Curuaya-Wörter. Anthropos, 27:65-93.
Vellard, J. A. (1949-1951). Contribution à l'étude des Indiens Uru ou Kot'suñs. Travaux de l'Institut Français d'études Andines, 1:145-209, 2:51-89, 3:3-39.
↑Stark, Louisa R. (1972). "Maya-Yunga-Chipayan: A New Linguistic Alignment". International Journal of American Linguistics. 38 (2): 119–135. doi:10.1086/465193. ISSN0020-7071.
† indicates an extinct language, italics indicates independent status of a language, bold indicates that a language family has at least 6 members, * indicates moribund status