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Traits name detailsHelicina oregona G. D. Hanna, 1920 †
1073802 (urn:lsid:marinespecies.org:taxname:1073802)
unaccepted > superseded combination
Species
fossil only
Hanna, G.D. (1920). Fossil mollusks from the John Day Basin in Oregon, contained in the Condon Museum of the University of Oregon. <em>University of Oregon Publication.</em> 1(6): 1-18., available online at https://www.biodiversitylibrary.org/page/20825598
page(s): 4-5, pl. 1, fig. 3a-c [details]
MolluscaBase eds. (2021). MolluscaBase. Helicina oregona G. D. Hanna, 1920 †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1073802 on 2025-05-28
Marine Species Traits editorial board (2025). Marine Species Traits. Helicina oregona G. D. Hanna, 1920 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1073802 on 2025-05-28
Date action by
original description
Hanna, G.D. (1920). Fossil mollusks from the John Day Basin in Oregon, contained in the Condon Museum of the University of Oregon. <em>University of Oregon Publication.</em> 1(6): 1-18., available online at https://www.biodiversitylibrary.org/page/20825598
page(s): 4-5, pl. 1, fig. 3a-c [details] basis of record Henderson, J. (1935). Fossil non-marine Mollusca of North America. <em>Geological Society of America Special Papers.</em> 3: 1-313. page(s): 160 [details] Available for editors  |
