original description
Pilsbry, H. A. (1944). Molluscan Fossils from the Rio Pachitea and Vicinity in Eastern Peru. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 96: 137-153.
page(s): 149, pl. 11, fig. 38 [details]
source of synonymy
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): 252-253 [details]
From editor or global species database
Type locality Stations 154, about one mile upstream from the Quebrada Sungarillo, Pachitea River, Peru. [details]