The relationship between the languages is, •
Umotina (†) • Otuke–Bororo •
Borôro • ?
Bororo of Cabaçal (Aravirá)
(†) •
Otuke (†), ?
Gorgotoqui (†) •
Kovareka–
Kuruminaka (†) Gorgotoqui may have also been a Bororoan language.
Bororo of Cabaçal, which has been documented by
Johann Natterer and
Francis de Castelnau, has been identified by Camargo (2014) as a separate language distinct from Bororo proper.
Loukotka (1968) Loukotka (1968) lists the following languages of the Boróro stock: •
Boróro / Coroados / Biribocone - extinct language once spoken on the Cabaçal and Jauru Rivers, state of Mato Grosso. •
Aravirá – extinct language once spoken on the
Cabaçal River and
Sepotuba River in Mato Grosso. [Is a synonym of Bororo of Cabaçal.] •
Orari / Eastern Boróro / Orarimugodoge - language spoken by an ancient warlike tribe on the
Valhas River,
Garças River, and
Madeira River, Mato Grosso. [Is a dialect of Bororo proper.] •
Umutina / Barbudo - spoken by a few families between the
Paraguai and Bugres Rivers, Mato Grosso. •
Otuque / Loushiru - spoken at the ancient mission of
Santo Corazon in the Bolivian Chaco, now by a few individuals. •
Covare - extinct language once spoken at the ancient mission of
Santa Ana de Chiquitos, Bolivia. •
Curumina - extinct language from the ancient mission of Casalvasco. •
Curucane /
Carruacane - extinct language once spoken at the ancient mission of San Rafael, Bolivia. (Unattested.) •
Curave /
Ecorabe - extinct language once spoken at the ancient mission of Santo Corazon, Bolivia. (Unattested.) •
Tapii - extinct language from the ancient mission of Santiago de Chiquitos, Bolivia. (Unattested.)
Mason (1950) The following are listed as Bororo varieties by Mason (1950): ; Bororo • Eastern: Orarimugudoge • Western: Cabasal; Campanya • Acioné • Aravira • Biriuné • Coroa (?) • Coxipo (?) : ==Proto-language==