WoRMS taxon details
Bifarinella Cushman & Hanzawa, 1936
526572 (urn:lsid:marinespecies.org:taxname:526572)
accepted
Genus
Bifarinella ryukyuensis Cushman & Hanzawa, 1936 (type by original designation)
- Species Bifarinella ryukyuensis Cushman & Hanzawa, 1936
- Species Bifarinella robusta (Sidebottom, 1918) accepted as Valvobifarina robusta (Sidebottom, 1918) (In opinion of Revets (1991))
marine, brackish, fresh, terrestrial
feminine
Cushman, J. A.; Hanzawa, S. (1936). New genera and species of Foraminifera of the Late Tertiary of the Pacific. <em>Contributions from the Cushman laboratory for foraminiferal research.</em> 12(2): 45-48., available online at https://cushmanfoundation.allenpress.com/Portals/_default/files/pubarchive/cclfr/12cclfr2.pdf
page(s): p. 45 [details] Available for editors
[request]
page(s): p. 45 [details] Available for editors
[request]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2023). World Foraminifera Database. Bifarinella Cushman & Hanzawa, 1936. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=526572 on 2023-12-01
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original description
Cushman, J. A.; Hanzawa, S. (1936). New genera and species of Foraminifera of the Late Tertiary of the Pacific. <em>Contributions from the Cushman laboratory for foraminiferal research.</em> 12(2): 45-48., available online at https://cushmanfoundation.allenpress.com/Portals/_default/files/pubarchive/cclfr/12cclfr2.pdf
page(s): p. 45 [details] Available for editors [request]
additional source Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors [request]
page(s): p. 45 [details] Available for editors
[request] additional source Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors
[request] From editor or global species database
Diagnosis Test elongate, flabelliform, globular proloculus followed by a few biserial chambers, then becoming uniserial, with broad, arched, and flattened chambers that have a thickened, elevated, and commonly nodose lower margin, overhanging laterally so that test margins appear serrated, sutures arched across the flat sides of the test; wall calcareous, optically radial, distinctly perforate, surface smooth except for the nodose lower chamber margins and occasional nodes elsewhere on the chambers; aperture not known, probably consisting only of pores as in Pavonina, intercameral foramina large, extending the length of the septal face and separated only by narrow bridges from one side of the test to that opposite. Pleistocene to Holocene; Pacific: Ryukyu Islands; Timor Sea. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
