Renaut, Hancox, PJ AJ2016-11-152016-11-1520010078-85542410-4418http://hdl.handle.net/10539/21445Examination of the holotype skull of the Triassic dicynodont Kannemeyeria argentinensis Bonaparte reveals that many of purported diagnostic characters are distortion-related. A redescription of the holotype indicates that its inclusion in the genus Kannemeyeria cannot be supported. Several characters are, however, identical to the Argentine taxon Vinceria, and we suggest that the two taxa may be congeneric. This finding challenges the validity of a global Kannemeyeria-biochron, but not necessarily the relationships of tetrapod faunal groups in South America and Africa.enCopyright 2016 The authors. Published under the CCBY 4.0 license.TriassiccynodontArgentinaKannemeyeriaVinceriaArticle