Hanna, G. D. (1922). Fossil freshwater mollusks from Oregon, contained in the Condon Museum of the University of Oregon. <em>University of Oregon Publication.</em> 1(12): 1-22., available online athttps://www.biodiversitylibrary.org/page/20825593 page(s): 5 [details]
MolluscaBase eds. (2024). MolluscaBase. Parapholyx G. D. Hanna, 1922. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1055202 on 2024-03-29
original descriptionHanna, G. D. (1922). Fossil freshwater mollusks from Oregon, contained in the Condon Museum of the University of Oregon. <em>University of Oregon Publication.</em> 1(12): 1-22., available online athttps://www.biodiversitylibrary.org/page/20825593 page(s): 5 [details]