MolluscaBase taxon details
Isapis obsoleta Dall, 1913 †
1261024 (urn:lsid:marinespecies.org:taxname:1261024)
accepted
Species
Isapis H. Adams & A. Adams, 1854 accepted as Iselica Dall, 1918
fossil only
Dall, W. H. (1913). On a brackish water Pliocene fauna of the southern Coastal Plain. <em>Proceedings of The United States National Museum.</em> 46 (2023): 225-237., available online at https://www.biodiversitylibrary.org/page/7762111
page(s): 233, pl. 22, fig. 8 [details]
page(s): 233, pl. 22, fig. 8 [details]
Note Rapides Parish (about 10 miles SW of...
Type locality Rapides Parish (about 10 miles SW of Alexandria) ("Station 6040, near Alexandria"), Louisiana, United States; Fleming Formation (Castor Creek Member), middle Miocene [details]
MolluscaBase eds. (2021). MolluscaBase. Isapis obsoleta Dall, 1913 †. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=1261024 on 2025-09-12
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original description
Dall, W. H. (1913). On a brackish water Pliocene fauna of the southern Coastal Plain. <em>Proceedings of The United States National Museum.</em> 46 (2023): 225-237., available online at https://www.biodiversitylibrary.org/page/7762111
page(s): 233, pl. 22, fig. 8 [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): 165 [details] Available for editors
[request]
page(s): 233, pl. 22, fig. 8 [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): 165 [details] Available for editors





From editor or global species database
Type locality Rapides Parish (about 10 miles SW of Alexandria) ("Station 6040, near Alexandria"), Louisiana, United States; Fleming Formation (Castor Creek Member), middle Miocene [details]