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Loukotka proposed a classification for the languages of South America based on several previous works.[3] This classification contained many unpublished materials and therefore greatly improved upon previous classifications. He divided the languages of South America and the Caribbean into 77 different families, based upon similarities of vocabulary and available lists. His classification of 1968 is the most influential and was based upon two previous schemes (1935, 1944), which were similar to those proposed by Paul Rivet (whom he was a student of[4]), although the number of families was increased to 94 and 114.[5]
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Rivet, Paul; Loukotka, Čestmír; Stresser-Pean, Guy (1952). Antoine, Meillet; Cohen, Marcel (eds.). Langues de l'Amérique du Sud et des Antilles. Les langues du monde (in French) (Second ed.). Paris: Champion. pp. 1009–1160.
^Campbell, Lyle (2012). "Classification of the indigenous languages of South America". In Grondona, Verónica; Campbell, Lyle (eds.). The Indigenous Languages of South America. The World of Linguistics. Vol. 2. Berlin: De Gruyter Mouton. pp. 59–166. ISBN978-3-11-025513-3.
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Loukotka, Čestmír (1968). Wilbert, Johannes (ed.). Classification of South American Indian Languages. Los Angeles: Latin American Center, University of California. ISBN9780879031077.
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