Victor Girard 1971 carefully reviewed the evidence for Pano-Tacanan and concluded it is suggestive but insufficient. Later dicta Willem F. H. Adelaar and Pieter C. Muysken 2004: 419 and re-examinations Lincoln Almir Amarante Ribeiro 2003 , Zariquiey Biondi, Roberto 2014 provided stronger evidence for Pano-Tacanan (cf. David W. Fleck 2013 ) but not (yet) conclusive. Yora is mutually intelligible with Yaminahua Shepard, Jr., Glenn H. 1999: 32-42 . The minuscule wordlist in Palau, Mercedes and Blanca Saiz 1989  of Chiriva Lorenzo Hervas 1784: 250 is probably Panoan.