original description
Prysjazhnjuk, V.A.; Devjatkin, E.V.; Badamgarav, D.; Liskun, I.G. (1975). Pervye nachodki nazemnych molliuskov v oligocene Mongoliji [in Russian]. In: Kramarenko, N.N. (Ed.) Iskopaemaja fauna i flora Mongolii. Sovmestnaja Sovetsko-Mongolskaja paleontologiceskaja ekspedicja, Trudy 2. Izdatel'stvo Nauka, Moskwa, pp. 167-177.
page(s): 172, pl. 1, figs 9-11 [details]
From editor or global species database
Type locality Unnamed locality 50 km east of the Taatsiin Gol River, 0.5 km east of the mammal site Ulaan Tolgoi, south of Dzun-Sharo-Ul Mountain, Valley of Lakes, central Mongolia; Hsanda Gol Formation, Oligocene [details]