MolluscaBase taxon details
original description
(of Pecten (Propeamussium) cowperi var. yubarensis Yabe & Nagao, 1928 †) Yabe, H. & Nagao, T. (1928). Cretaceous fossils from Hokkaido: Annelida, Gastropoda and Lamellibranchiata. <em>The Science Reports of the Tōhoku University, Series 2, Geology.</em> 9: 77-96.
page(s): 88, pl. 16, figs 17-19 [details] Available for editors [request]
basis of record
Amano K., Jenkins R.G. & Kurita H. (2018). New and Mesozoic-relict mollusks from Paleocene wood-fall communities in Urahoro Town, eastern Hokkaido, northern Japan. <em>Journal of Paleontology.</em> 92(4): 634-647., available online at https://doi.org/10.1017/jpa.2017.137 [details]
additional source
Hayami, I. (1975). A systematic survey of the Mesozoic Bivalvia from Japan. <em>University Museum, University of Tokyo, Bulletin.</em> 10: 1-249., available online at http://umdb.um.u-tokyo.ac.jp/DKankoub/Bulletin/no10/no10000.html [details]