original description
Martens, E. von. (1874). Fossile Süsswasser-Conchylien aus Sibirien. II. <em>Zeitschrift der Deutschen Geologischen Gesellschaft.</em> 26: 741-751, pl. 20., available online at https://www.biodiversitylibrary.org/page/44031902
page(s): 747-748, pl. 20, figs 8-10 [details]
From editor or global species database
Type locality Omsk, western Siberia, Russia [details]