original description
Guo, F.-X. [with additions by Chen Jin-hua]. (1988). New genera of fossil bivalves from Yunnan. <em>Yunnan Geology.</em> 7(2): 112-144, pl. 1-7.
page(s): 123 [details]
basis of record
Fang, Z.-J.; Chen, J.-H.; Chen, C.-Z.; Sha, J.-G.; Lan, X.; Wen, S.-X. (2009). Supraspecific taxa of the Bivalvia first named, described, and published in China (1927-2007). <em>The University of Kansas Paleontological Contributions, New Series.</em> 17: 1-157.
page(s): 63-65, fig. 20.32-20.33 [details] Available for editors [request]
From editor or global species database
Synonymy According to Fang et al. (2009), Periodunio might be a junior synonym of Unio Philipsson; minor difference in dentition between the two genera might be due to variation. [details]