MolluscaBase taxon details
original description
(of Circe tokudai Yokoyama, 1932 †) Yokoyama M. (1932). Tertiary Mollusca from the Coalfield of Uryu, Ishikari. <em>Journal of the Faculty of Science, Imperial University of Tokyo. Section II, Geology, Mineralogy, Geography, Seismology.</em> 3(6): 221-247., available online at http://umdb.um.u-tokyo.ac.jp/DKoseibu/pdf/Ref_0503_.pdf
page(s): 240-241, pl. 2, figs 2-4 [details] Available for editors [request]
basis of record
Mizuno, A. (1964). Summary of the Paleogene molluscan faunas in North Japan. <em>Geological Survey of Japan, Reports.</em> 207: 1-28. [details] Available for editors [request]
additional source
Honda, Y. (1981). Corbiculid Mollusca from the Urahoro Group, Kushiro coal field, eastern Hokkaido. <em>Transactions and Proceedings of the Palaeontological Society of Japan, new series.</em> 121: 14-28.
page(s): 20-22, pl. 2, figs 1-5, 7, 8, 12, 18 [details] Available for editors [request]