original description
Roxo, M. de Oliveira. (1924). Breve noticea sobre os fosseis terciario do Alto Amazonas. <em>Boletim Serviço Geologico e Mineralogico do Brasil.</em> 11: 41-52.
page(s): 50, fig. E [details]
new combination reference
Wesselingh, F.P. (2006). Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia. <em>Scripta Geologica.</em> 133: 19-290., available online at http://www.repository.naturalis.nl/document/41346
page(s): 181, figs 16f, 227 [details]
From editor or global species database
Type locality Três Unidos (at Javary river), Peru [details]