WoRMS taxon details
Eusphaeroidina Ujiié, 1990
527053 (urn:lsid:marinespecies.org:taxname:527053)
accepted
Genus
Eusphaeroidina inflata Ujiié, 1990 (type by original designation)
marine, brackish, fresh, terrestrial
recent + fossil
feminine
Ujiié, H. (1990). Bathyal Benthic Foraminifera in a Piston Core from East off the Miyako Islands, Ryukyu Island Arc. <em>Bulletin of the College of Science, University of the Ryukyus.</em> 49: 1-60., available online at https://doi.org/10.1016/s0198-0254(06)80384-5
page(s): p. 29. [details] Available for editors
[request]
page(s): p. 29. [details] Available for editors
[request]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Eusphaeroidina Ujiié, 1990. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=527053 on 2026-09-30
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Nomenclature
original description
Ujiié, H. (1990). Bathyal Benthic Foraminifera in a Piston Core from East off the Miyako Islands, Ryukyu Island Arc. <em>Bulletin of the College of Science, University of the Ryukyus.</em> 49: 1-60., available online at https://doi.org/10.1016/s0198-0254(06)80384-5
page(s): p. 29. [details] Available for editors [request]
page(s): p. 29. [details] Available for editors
[request]From editor or global species database
Original description Description. Test globular, coiling much variable independently to position of aperture; chambers spherical, growing so rapidly that later chambers tend to envelop the earlier ones; aperture very low arched and weakly rimmed, at the base of last chamber, not always above the junction of last chamber and the penultimate two chambers. Remarks. This new genus differs from Sphaeroidina in showing more rapid growth of chambers through the life and also more variable coiling as shown by the position of aperture which is not restricted above the junction of the ultimate and two penultimate chambers. This mode of morphology suggests a final step of Sphaeroidina evolutionary lineage and theretofore a genus name, Eusphaeroidina, is given.
[Late Pleistocene to Holocene] [details]
From editor or global species database
Image from typetaxon
Image from typetaxon
