MolluscaBase name details
Polygyra expansa G D. Hanna, 1920 †
1346619 (urn:lsid:marinespecies.org:taxname:1346619)
uncertain > taxon inquirendum
Species
fossil only
Hanna, G.D. (1920). Miocene Land Shells from Oregon. <em>The University of Kansas Science Bulletin.</em> 13(1): 3-12., available online at https://www.biodiversitylibrary.org/page/4397878
page(s): 8, pl. 1, figs 7-9 [details]
page(s): 8, pl. 1, figs 7-9 [details]
Note Cove Inlet, John Day river, Oregon, United States
Type locality Cove Inlet, John Day river, Oregon, United States [details]
MolluscaBase eds. (2021). MolluscaBase. Polygyra expansa G. D. Hanna, 1920 †. Accessed at: http://molluscabase.org/aphia.php?p=taxdetails&id=1346619 on 2025-09-11
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original description
Hanna, G.D. (1920). Miocene Land Shells from Oregon. <em>The University of Kansas Science Bulletin.</em> 13(1): 3-12., available online at https://www.biodiversitylibrary.org/page/4397878
page(s): 8, pl. 1, figs 7-9 [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): 144 [details] Available for editors
[request]
status source Roth, B. (1986). Land mollusks (Gastropoda: Pulmonata) from Early Tertiary Bozeman Group, Montana. <em>Proceedings of the California Academy of Sciences.</em> 44(11): 237-267., available online at https://www.biodiversitylibrary.org/page/16005679 [details] Available for editors [request]
page(s): 8, pl. 1, figs 7-9 [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): 144 [details] Available for editors
[request]status source Roth, B. (1986). Land mollusks (Gastropoda: Pulmonata) from Early Tertiary Bozeman Group, Montana. <em>Proceedings of the California Academy of Sciences.</em> 44(11): 237-267., available online at https://www.biodiversitylibrary.org/page/16005679 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Type locality Cove Inlet, John Day river, Oregon, United States [details]
