There are lexical parallels with Mapuche as well as Qawesqar
Trivero Ribera, Alberto 2005 :82 but the core is clearly unrelated.
Chono, an extinct isolate language of Southern Chile, is missing from
E16/E17/E18/E19 ( Viegas Barros, Pedro J. 2005 , Bausani, Alessandro 1975 )
unless it is the language (unsuccessfully) intended by the Kakauhua [kbf]-entry.
See also: Kakauhua [kbf].