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Covers the "Amazon" reference area, composed of sets not covered by any phylozone.
Comprising 22 sets of languages (= 55 outer languages) spoken by communities in the Amazon basin of South America.
Including (with zone 81=) a number of languages sometimes known as ’macú’, ’makú’, ’maco’, an unscientific term applied by outsiders to certain indigenous communities in the interior of Colombia and Venezuela, and in adjacent Brazil.