Carlorosi, J. et al. «Ordovician conodonts of the Devendeus Formation at the Angosto de La Quesera (Cordillera Oriental of Salta, Argentina): Taxonomic considerations and biostratigraphic significance». Geologica Acta, 2011, vol.VOL 9, núm. 2, p. 187-9, https://raco.cat/index.php/GeologicaActa/article/view/244268.