Traits 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]
MolluscaBase eds. (2021). MolluscaBase. Polygyra expansa G. D. Hanna, 1920 †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: http://marinespecies.org/traits/aphia.php?p=taxdetails&id=1346619 on 2025-03-17
Marine Species Traits editorial board (2025). Marine Species Traits. Polygyra expansa G. D. Hanna, 1920 †. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1346619 on 2025-03-17
Date
action
by
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
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
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
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
