There are occasional lexical links to the Tallán language(s)
Willem F. H. Adelaar and Pieter C. Muysken 2004: 398-400 , but the very limited data available is not
compelling towards a genetic relationship.
Sechuran, an extinct poorly attested Peruvian language of uncertain affiliation,
is missing from E16/E17/E18/E19 ( Zevallos Quiñones, Jorge 1948 ,
von Buchwald, Otto 1919 , Willem F. H. Adelaar and Pieter C. Muysken 2004 ,
Čestmír Loukotka 1949 ).