Urupa, an extinct Chapacuran language, is missing from E16/E17/E18/E19/E20/E21/E22/E23/E24/E25/E26/E27 ( Curt Nimuendajú 1925 , Curt Nimuendajú and do Valle Bentes, Euclydes Henrique 1923 ).
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Glottolog