original description
Kobayashi, T.; Hisakosi, S. (1942). On Some Naiads from the Upper Palaeozoic Formations in Eastern Asia. <em>Japanese Journal of Geology and Geography.</em> 18: 225-235.
page(s): 234, unnumered textfig. [details] Available for editors [request]
additional source
Liang, S.-F. (1980). Mollusca. In: Shenyang Institute of Geology and Mineral Resources (eds) Paleontological Atlas of Northeast China, 1. Paleozoic volume. Geological Publishing House, Beijing, pp. 429-484.
page(s): 436, pl. 189, fig. 20 [details] Available for editors [request]
additional source
Kobayashi, T. (1971). The Manmo group of the Mongolian geosyncline in Manchuria and adjacent areas. In: Ogura, T. (Ed.), Geology and Mineral Resources of the Far East. Vol. 3. University of Tokyo Press, Tokyo, pp. 3-69. [details] Available for editors [request]
From editor or global species database
Type locality "adjacently north of Soron along the Hahai river in yellowish gray clayslate"; "Soron [= So’on?] is a small town in the middle part of the Great Khingan range, some 165 km. west southwest of Tsitsihar and about 140 km. northwest of Taonan" (Inner Mongolia, China) [details]