original description
Popova, S.M. (1981). Kaynozoyskaya kontinental'naya malakofauna yuga Sibiri i sopredel'nykh territoriy [The Cenozoic continental malacofauna of Southern Siberia and adjacent territories]. Nauka, Moskva, 188 pp.
page(s): 81, pl. 21, figs 4, 5 [details] Available for editors [request]
From editor or global species database
Fossil range Age uncertain, given as Pg3-3 - N1-1 (late Oligocene to early Miocene) by Popova (1981); no formation name provided [details]