Foraminifera name details
Elphidium hanzawai Asano, 1939
814857 (urn:lsid:marinespecies.org:taxname:814857)
unaccepted > junior subjective synonym
Species
marine, fresh, terrestrial
recent + fossil
Asano, K. (1939). New Species of Pliocene Foraminifera from Oga Peninsula, Akita Prefecture.,. <em>The Journal of the Geological Society of Japan.</em> 46(551): 413-427., available online at https://www.jstage.jst.go.jp/article/geosoc1893/46/551/46_551_413/_pdf/-char/ja [details] Available for editors 
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Note A sea - cliff at 700 m W of Anden, Iriai -...
From editor or global species database
Type locality A sea - cliff at 700 m W of Anden, Iriai - mura, Minami - akita - gun (Anden, Iriai, Oga City), Akita Pref., Japan (39^58.0'N, 139^ 51.2'E). Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025): https://gbank.gsj.jp/FossilType/ [details]
Fossil range Age: Pliocene; Formation name: Shibikawa Formation
Taxonomy Scott et al. (2000) considered this to bea junior synonym opinion of Elphidium advena; but Hayward et al. (2025) considered...
Type specimen Holotype: IGPS no. 62910, Paratype: (Text - figs. 4a, b). Data compiled from Palaeontological Society of Japan and...
Fossil range Age: Pliocene; Formation name: Shibikawa Formation [details]
Taxonomy Scott et al. (2000) considered this to bea junior synonym opinion of Elphidium advena; but Hayward et al. (2025) considered...
Taxonomy Scott et al. (2000) considered this to bea junior synonym opinion of Elphidium advena; but Hayward et al. (2025) considered it to bwe a junior synonym of E. jenseni. [details]
Type specimen Holotype: IGPS no. 62910, Paratype: (Text - figs. 4a, b). Data compiled from Palaeontological Society of Japan and...
Type specimen Holotype: IGPS no. 62910, Paratype: (Text - figs. 4a, b). 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. Elphidium hanzawai Asano, 1939. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=814857 on 2026-05-02
Date
action
by
original description
Asano, K. (1939). New Species of Pliocene Foraminifera from Oga Peninsula, Akita Prefecture.,. <em>The Journal of the Geological Society of Japan.</em> 46(551): 413-427., available online at https://www.jstage.jst.go.jp/article/geosoc1893/46/551/46_551_413/_pdf/-char/ja [details] Available for editors [request]
source of synonymy Hayward, B.W., Holzmann, M., Langer, M.R., Parker, J.H., Tsuchiya, M. (2025). Molecular and morphological taxonomy and biogeography of living Cribroelphidiidae, Elphidiellidae, Elphidiidae, Haynesinidae and related taxa (Foraminifera, Rotalioidea). <em>Micropaleontology.</em> 71: 433-808., available online at https://doi.org/10.47894/mpal.71.5.01 [details] Available for editors [request]
[request]source of synonymy Hayward, B.W., Holzmann, M., Langer, M.R., Parker, J.H., Tsuchiya, M. (2025). Molecular and morphological taxonomy and biogeography of living Cribroelphidiidae, Elphidiellidae, Elphidiidae, Haynesinidae and related taxa (Foraminifera, Rotalioidea). <em>Micropaleontology.</em> 71: 433-808., available online at https://doi.org/10.47894/mpal.71.5.01 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Fossil range Age: Pliocene; Formation name: Shibikawa Formation [details]Taxonomy Scott et al. (2000) considered this to bea junior synonym opinion of Elphidium advena; but Hayward et al. (2025) considered it to bwe a junior synonym of E. jenseni. [details]
Type locality A sea - cliff at 700 m W of Anden, Iriai - mura, Minami - akita - gun (Anden, Iriai, Oga City), Akita Pref., Japan (39^58.0'N, 139^ 51.2'E). 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. 62910, Paratype: (Text - figs. 4a, b). Data compiled from Palaeontological Society of Japan and Geological Survey of Japan, AIST (2025): https://gbank.gsj.jp/FossilType/ [details]