Languages of India | Indo-European languages | Celtic languages | Slavic languages | Algonquian languages | Turkic languages | Bantu languages | Romance languages | Berber languages | Australian Aboriginal languages | Germanic languages | Goidelic languages | Arawakan languages | North Germanic languages | Indigenous languages of the Americas | Austroasiatic languages | Indo-Aryan languages | Polynesian languages | Northwest Caucasian languages | Munda languages | Mongolic languages | French-based creole languages | Songhay languages | Semitic languages | Dené–Yeniseian languages | Common European Framework of Reference for Languages | Visayan languages | Tupian languages | Tibeto-Burman languages | Pama–Nyungan languages |
Along with Wounmeu, they are the only extant members of the Chocó language family and not known to be related to any other language family of Central or South America, although in the past relationships have been proposed with the Carib, Arawak, and Chibchan language families.
Unusually, he carried out fieldwork across a wide range of languages across several continents, including Irish, Basque, Siouan languages, Algonquian languages, Iroquoian languages, the Central American language Kuna and the South American language of Choco and Wayuu and Australian Aboriginal languages.