original descriptionMeyer O. (1884). Notes on Tertiary shells. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 36: 104-112., available online athttps://www.biodiversitylibrary.org/page/6387939 page(s): 110 [details]
additional sourceGarvie, C. L.; Goedert, J. L.; Janssen, A. W. (2020). Paleogene and Late Cretaceous Pteropoda (Mollusca, Gastropoda, Heterobranchia) from North America. <em>Zootaxa.</em> 4782(1): 1-115., available online athttps://doi.org/10.11646/zootaxa.4782.1.1 page(s): 74 [details]
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