Opón language

Opón (Opone) was an unusually divergent Cariban language of Colombia.

Phonology
Marshall Durbin and Haydée Seijas derive the following phonology based on 1958 data from Giraldo and Fornaguera. * [ʔ] may not be phonemic, it appears only at morpheme boundaries. While common in other Cariban languages, nasal vowels are not recorded in Opón.