MolluscaBase taxon details
Orectospira gemma (Nagao, 1928) †
1830624 (urn:lsid:marinespecies.org:taxname:1830624)
accepted
Species
marine, brackish, fresh, terrestrial
fossil only
(of Rissoina gemma Nagao, 1928 †) Nagao, T. (1928). Palaeogene fossils of the island of Kyûshû, Japan. Part I. <em>Science reports of the Tohoku Imperial University. 2nd series, Geology.</em> 9(3): 97-128, pls. 18-22.
page(s): 119-120; plate XX, Figs 20-21 [details] Available for editors
[request]
page(s): 119-120; plate XX, Figs 20-21 [details] Available for editors
[request]
MolluscaBase eds. (2025). MolluscaBase. Orectospira gemma (Nagao, 1928) †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1830624 on 2025-09-11
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original description
(of Rissoina gemma Nagao, 1928 †) Nagao, T. (1928). Palaeogene fossils of the island of Kyûshû, Japan. Part I. <em>Science reports of the Tohoku Imperial University. 2nd series, Geology.</em> 9(3): 97-128, pls. 18-22.
page(s): 119-120; plate XX, Figs 20-21 [details] Available for editors [request]
additional source Ikeya, N., Hirano, H. & Ogasawara, K. (2002). The database of Japanese fossil type specimens described during the 20th Century (Part 2). <em>Palaeontological Society of Japan, Special Papers.</em> 40: 1-568., available online at https://gbank.gsj.jp/FossilType
page(s): pp. 451, 483. [details]
additional source Mizuno, A. (1964). Paleogene and early Neogene molluscan faunae in west Japan. <em>Geological Survey of Japan, Reports.</em> 204: 1-71.
page(s): pp. 10, 14, 45, 50. [details] Available for editors [request]
new combination reference Oyama, K. (1961). Revision of cenozoic mollusca from Japan. <em>Bulletin of the Geological Survey of Japan.</em> Volume 12, No. 5, pp. 75-82., available online at https://www.gsj.jp/data/bull-gsj/12-05_07.pdf
page(s): pp. 75, 77. [details] Available for editors [request]
page(s): 119-120; plate XX, Figs 20-21 [details] Available for editors
[request]additional source Ikeya, N., Hirano, H. & Ogasawara, K. (2002). The database of Japanese fossil type specimens described during the 20th Century (Part 2). <em>Palaeontological Society of Japan, Special Papers.</em> 40: 1-568., available online at https://gbank.gsj.jp/FossilType
page(s): pp. 451, 483. [details]
additional source Mizuno, A. (1964). Paleogene and early Neogene molluscan faunae in west Japan. <em>Geological Survey of Japan, Reports.</em> 204: 1-71.
page(s): pp. 10, 14, 45, 50. [details] Available for editors
[request]new combination reference Oyama, K. (1961). Revision of cenozoic mollusca from Japan. <em>Bulletin of the Geological Survey of Japan.</em> Volume 12, No. 5, pp. 75-82., available online at https://www.gsj.jp/data/bull-gsj/12-05_07.pdf
page(s): pp. 75, 77. [details] Available for editors
[request]