Andoque–Urequena is a

language family A language family is a group of languages related through descent from a common ''ancestral language'' or ''parental language'', called the proto-language of that family. The term "family" reflects the tree model of language origination in h ...

that consists of a pair of languages, Andoque and Urequena. The close relationship of Urequena to Andoque was first recognized by Marcelo Jolkesky.Jolkesky, Marcelo Pinho De Valhery. 2016.
Estudo arqueo-ecolinguístico das terras tropicais sul-americanas
'. Ph.D. dissertation,

University of Brasília The University of Brasília ( pt, Universidade de Brasília, UnB) is a federal public university in Brasília, the capital of Brazil. It was founded in 1960 and has since consistently been named among the top five Brazilian universities and the ...

. Urequena (Uerequena, Arequena, Orelhudos) is currently extinct, and is known only from an undated 19-century manuscript by Austrian naturalist

Johann Natterer Johann Natterer (9 November 1787 – 17 June 1843) was an Austrian naturalist and explorer. Family and early life Johann Natterer was born on 9 November 1787, the son of the animal-zoologist Joseph Natterer Sr. and Maria Anna Theresia Scho ...

.The Ethnographic Collection of Johann Natterer
Natterer gives the

Içá River The Putumayo River or Içá River ( es, Río Putumayo, pt, Rio Içá) is one of the tributaries of the Amazon River, southwest of and parallel to the Japurá River. Course The Putumayo River forms part of Colombia's border with Ecuador, as wel ...

(or

Putumayo River The Putumayo River or Içá River ( es, Río Putumayo, pt, Rio Içá) is one of the tributaries of the Amazon River, southwest of and parallel to the Japurá River. Course The Putumayo River forms part of Colombia's border with Ecuador, as well ...

) as the location of the Urequena language.Johann Natterer and the Amazonian languages

References

Language families Indigenous languages of the Americas Languages of Colombia {{na-lang-stub