Foraminifera taxon details
Operculina complanata subsp. japonica Hanzawa, 1935 †
928005 (urn:lsid:marinespecies.org:taxname:928005)
accepted
Subspecies
marine, brackish, fresh, terrestrial
fossil only
Hanzawa, S. (1935), Some fossil Operculina and Miogypsina from Japan and their stratigraphical significance, Science Reports of the Tohoku University. ser. 2, Geology 18(1): 1-29. , available online at http://hdl.handle.net/10097/30260 [details] Available for editors 
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Note West of Tonosawa, Odose, Fukaura - Cho,...
From editor or global species database
Type locality West of Tonosawa, Odose, Fukaura - Cho, Nishitsugaru - Gun, Aomori Prefecture. Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025): https://gbank.gsj.jp/FossilType/ [details]
Fossil range Age: Late Early and early Middle Miocene; Formation name: Shiomizaki Formation
Type specimen Holotype: IGPS no. 21242. Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025):...
Fossil range Age: Late Early and early Middle Miocene; Formation name: Shiomizaki Formation [details]
Type specimen Holotype: IGPS no. 21242. Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025):...
Type specimen Holotype: IGPS no. 21242. Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025): https://gbank.gsj.jp/FossilType/ [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Operculina complanata subsp. japonica Hanzawa, 1935 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=928005 on 2026-03-08
Date
action
by
original description
Hanzawa, S. (1935), Some fossil Operculina and Miogypsina from Japan and their stratigraphical significance, Science Reports of the Tohoku University. ser. 2, Geology 18(1): 1-29. , available online at http://hdl.handle.net/10097/30260 [details] Available for editors [request]
basis of record Ellis, B. F.; Messina, A. R. (1940-2015). Catalogue of Foraminifera. <em>Micropaleontology Press, American Museum of Natural History, New York.</em> [details]
[request]basis of record Ellis, B. F.; Messina, A. R. (1940-2015). Catalogue of Foraminifera. <em>Micropaleontology Press, American Museum of Natural History, New York.</em> [details]
From editor or global species database
Fossil range Age: Late Early and early Middle Miocene; Formation name: Shiomizaki Formation [details]Type locality West of Tonosawa, Odose, Fukaura - Cho, Nishitsugaru - Gun, Aomori Prefecture. Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025): https://gbank.gsj.jp/FossilType/ [details]
Type specimen Holotype: IGPS no. 21242. Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025): https://gbank.gsj.jp/FossilType/ [details]
