original descriptionEndo, R. (1932). The Canadian and Ordovician formations and fossils of South Manchuria. <em>Bulletin of the United States National Museum.</em> 164: i–iii, 1-152, 40 pls., available online athttps://library.si.edu/digital-library/book/bulletinunit1641932unit page(s): 95, pl. 20, fig. 6 [details]
Present Inaccurate Introduced: alien Containing type locality