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Covers the "North-Australia" reference area (within the "Australian" hypothesis).
Comprising 21 sets of languages (85 outer languages) spoken or formerly spoken by hunter-gatherer communities (or descendants of former hunter-gatherers) across the far-north of Australia.
Only 14 among 298 surviving outer-languages in zones 28= and 29= (marked ¸) are likely to have totalled 1,000 or more voices each in 1999: see note under geozone 29=.