original description
Pilsbry, H. A. & Olsson, A. A. (1935). Tertiary fresh-water mollusks of the Magdalena Embayment, Colombia. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 87: 7-39.
page(s): 20, pl. 4, fig. 8 [details] Available for editors [request]
additional source
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): 271 [details]
source of synonymy
Nuttall, C. P. (1990). A review of the Tertiary non-marine molluscan faunas of the Pebasian and other inland basins of north-western South America. <em>Bulletin of The British Museum (Natural History), Geology Series.</em> 45(2): 165-371., available online at https://www.biodiversitylibrary.org/page/45474563
page(s): 337 [details]
From editor or global species database
Type locality La Cira formation: near Zopffs, La Cira district (Colombia) [details]