Janambre (Xanambre) is a poorly attested extinct language that was spoken in Tamaulipas, northeast Mexico. It has no apparent relatives and remains unclassified. Campbell (1997), based on William Bright (1955), suggests a relationship with the extinct, unclassified languages Naolan and Tamaulipeco, although no evidence is given.Campbell, Lyle (1997). American Indian languages: the historical linguistics of Native America. Oxford: Oxford University Press. . Other languages unclassified extinct languages of Tamaulipas include the language of the Pisones, "Negrito" and Olive,Landar H. (1977) North American Indian Languages. In: Sebeok T.A. (eds) Native Languages of the Americas. Springer, Boston, MA. though the Janambre and Pison may have spoken the same language.
See also Naolan language Tamaulipeco language Maratino language Quinigua language Coahuiltecan languages
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