Mamoré–Guaporé linguistic area

The Mamoré–Guaporé linguistic area is a linguistic area that includes over a dozen South American language families and isolates of the Mamoré–Guaporé region of eastern lowland Bolivia (the Llanos de Moxos and Chiquitania regions) and Brazil (Rondonia and Mato Grosso states).

Languages
Crevels and van der Voort (2008) propose a Mamoré–Guaporé linguistic area in eastern lowland Bolivia (in Beni Department and Santa Cruz Department) and Rondonia and northwestern Mato Grosso, Brazil. In Bolivia, many of the languages were historically spoken at the Jesuit Missions of Moxos and also the Jesuit Missions of Chiquitos. Language families and branches in the linguistic area are as follows.


 * Chapacuran languages
 * Tacanan languages
 * a few Panoan languages
 * Nambikwaran languages
 * the Arawakan languages Moxo, Bauré, Paunaka, and other related varieties

Tupian branches in the Mamoré–Guaporé linguistic area are:
 * Ramarama languages
 * Puruborá language
 * Mondé languages
 * Tupari languages
 * Arikem languages
 * Guarayo languages (Tupi–Guarani group)
 * some Guarani dialects (Tupi–Guarani group)

Macro-Jê branches in the Mamoré–Guaporé linguistic area are:
 * Jabutian languages
 * Rikbaktsá language
 * Chiquitano (sister branch of Macro-Jê)

Language isolates in the linguistic area are:
 * Cayuvava
 * Itonama
 * Movima
 * Chimane/Mosetén
 * Canichana
 * Yuracaré
 * Leco
 * Mure
 * Aikanã
 * Kanoê
 * Kwazá
 * Irantxe
 * Arara

Linguistic features
Areal features include:


 * a high incidence of prefixes
 * evidentials
 * directionals
 * verbal number
 * lack of nominal number
 * lack of classifiers
 * inclusive/exclusive distinction

Pieter Muysken et al. (2014) also performed a detailed statistical analysis of the Mamoré–Guaporé linguistic area.

Reconstruction of Proto-Mamoré-Guaporé
Reconstruction of Proto-Mamoré-Guaporé language according to Jolkesky 2016: