WoRMS taxon details
Elphidium tsudai Chiji & Nakaseko, 1950 †
852081 (urn:lsid:marinespecies.org:taxname:852081)
accepted
Species
marine, fresh, terrestrial
fossil only
Chiji, M.; Nakaseko, K. (1950). New Species of Neogene Foraminifera from the Toyoma Basin, Japan., (Microbiostratigraphic Study of Cainozoic Strata in Japan., Part III). <em>The Journal of the Geological Society of Japan.</em> 56(663): 519-522., available online at https://doi.org/10.5575/geosoc.56.519 [details] Available for editors 
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Note Futamata, Asakawa - mura, Kahoku - gun...
From editor or global species database
Type locality Futamata, Asakawa - mura, Kahoku - gun (Futamata, Kanazawa City), Ishikawa Pref., Japan (36^33.2'N, 136^46.3'E). Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025): https://gbank.gsj.jp/FossilType/ [details]
Fossil range Age: Miocene; Formation name: Sunagozaka tuffite (Sunagozaka Formation)
Fossil range Age: Miocene; Formation name: Sunagozaka tuffite (Sunagozaka Formation) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Elphidium tsudai Chiji & Nakaseko, 1950 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=852081 on 2026-10-12
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Nomenclature
original description
Chiji, M.; Nakaseko, K. (1950). New Species of Neogene Foraminifera from the Toyoma Basin, Japan., (Microbiostratigraphic Study of Cainozoic Strata in Japan., Part III). <em>The Journal of the Geological Society of Japan.</em> 56(663): 519-522., available online at https://doi.org/10.5575/geosoc.56.519 [details] Available for editors [request]
[request]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Fossil range Age: Miocene; Formation name: Sunagozaka tuffite (Sunagozaka Formation) [details]Type locality Futamata, Asakawa - mura, Kahoku - gun (Futamata, Kanazawa City), Ishikawa Pref., Japan (36^33.2'N, 136^46.3'E). Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025): https://gbank.gsj.jp/FossilType/ [details]
Type specimen Holotype: Geol. Inst. Kyoto Univ. (not numbered). Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025): https://gbank.gsj.jp/FossilType/ [details]
