original description
(of Pecten (Placopecten) osawanoensis Tsuda, 1959 †) Tsuda, K. (1959). New Miocene molluscs from the Kurosedani Formation in Toyama Prefecture, Japan. <em>Journal of the Faculty of Science, Niigata University, series 2.</em> 3(2): 67-110, pls. 1-7.
page(s): 72, pl. 1, fig. 10 [details]
basis of record
Sato, Y. (1991). Paleontological study of molluscan assemblages of the Miocene Moniwa Formation, Northeast Japan and description of their Pectinidae. <em>Report, Geological Survey of Japan.</em> 272: 1-249, pls. 1-34.
page(s): 88 [details]
additional source
Masuda, K. (1962). Tertiary pectinids of Japan. <em>Science reports of the Tohoku University. Second series, Geology.</em> 33(2): 117-238, pls. 18-27.
page(s): 193, pl. 24, fig. 10, pl. 25, fig. 8 [details] Available for editors [request]
From editor or global species database
Classification May belong in a new genus according to Sato (1991). [details]