original description
Palmer, K. v. W. (1945). Fossil fresh-water Mollusca from the State of Monagas, Venezuela. <em>Bulletins of American Paleontology.</em> 31(118): 1-34., available online at https://www.biodiversitylibrary.org/page/10660362
page(s): 19, pl. 2, figs 8, 12, 13, 16 [details] Available for editors [request]
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): 231 [details]
From editor or global species database
Type locality A low hill along the east bank of the Quatatal River, east of La Llanera and 17.1 kms. as the crow flies north of Caicara in the State of Monagas, Venezuela [details]