MolluscaBase taxon details
Scalez G D. Hanna & Gaylord, 1924 †
1419127 (urn:lsid:marinespecies.org:taxname:1419127)
accepted
Genus
Scalez petrolia G D. Hanna & Gaylord, 1924 † (type by monotypy)
fossil only
Hanna, G D. & Gaylord, E. G. (1924). Description of a new genus and species of freshwater gastropod mollusk (<em>Scalez petrolia</em>) from the Etchegoin Pliocene of California. <em>Proceedings of the California Academy of Sciences.</em> ser. 4, 13(9): 147-149., available online at https://biodiversitylibrary.org/page/3137967
page(s): 147 [details]
page(s): 147 [details]
MolluscaBase eds. (2025). MolluscaBase. Scalez G D. Hanna & Gaylord, 1924 †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1419127 on 2025-09-10
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original description
Hanna, G D. & Gaylord, E. G. (1924). Description of a new genus and species of freshwater gastropod mollusk (<em>Scalez petrolia</em>) from the Etchegoin Pliocene of California. <em>Proceedings of the California Academy of Sciences.</em> ser. 4, 13(9): 147-149., available online at https://biodiversitylibrary.org/page/3137967
page(s): 147 [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): 177 [details] Available for editors
[request]
additional source Hanna, G D. (1926). Further notes on <em>Scalez petrolia</em>. <em>The Nautilus.</em> 40(1): 14-16., available online at https://biodiversitylibrary.org/page/8523147 [details]
additional source Woodring, W. P. (1936). Pliocene viviparoid calcareous operculum from the Kettleman Hills (California). <em>Proceedings of the Geological Society of America.</em> 1935: 413. [details]
page(s): 147 [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): 177 [details] Available for editors
[request]additional source Hanna, G D. (1926). Further notes on <em>Scalez petrolia</em>. <em>The Nautilus.</em> 40(1): 14-16., available online at https://biodiversitylibrary.org/page/8523147 [details]
additional source Woodring, W. P. (1936). Pliocene viviparoid calcareous operculum from the Kettleman Hills (California). <em>Proceedings of the Geological Society of America.</em> 1935: 413. [details]
From editor or global species database
Classification Originally placed in "Bithyniinae" by Hanna & Gaylord (1924), which was also advocated by Starobogatov (1992) based on the calcified operculum. However, Woodring (1936) had associated the opercula with viviparid shells. [details]
