Foraminifera taxon details
Sigmoilinella Zheng, 1979
531977 (urn:lsid:marinespecies.org:taxname:531977)
accepted
Genus
Sigmoilinella tortuosa Zheng, 1979 (type by original designation)
- Species Sigmoilinella mucro (Serova, 1955) †
- Species Sigmoilinella tortuosa Zheng, 1979
- Species Sigmoilinella anceps (Reuss, 1850) accepted as Triloculina anceps Reuss, 1850 accepted as Adelosina anceps (Reuss, 1850)
marine, brackish, fresh, terrestrial
feminine
Zheng, S.-Y. (1979). The Recent foraminifera of the Xisha Islands, Guangdong Province, China. II. <em>Studia marina sinica.</em> 15: 101-232.
page(s): p. 130, 208 [details] Available for editors
[request]
page(s): p. 130, 208 [details] Available for editors

Type locality contained in Xisha Islands
type locality contained in Xisha Islands [details]
Diagnosis Test elongate fusiform, twisted in appearance, subtriangular in section, chambers onehalf coil in length, with planes of...
Diagnosis Test elongate fusiform, twisted in appearance, subtriangular in section, chambers onehalf coil in length, with planes of coiling changing to give a sigmoiline appearance in section, later chambers added in a single plane, three to four visible from each side, chambers with floors, widest at the base and tapering through the middle and later part, terminally produced as a long neck; wall calcareous, imperforate, porcelaneous, surface smooth, or with a few low longitudinal costae; aperture rounded, at the end of the produced neck, bordered by a distinctly thickened rim, and with a short bifid tooth. Holocene; China: Xisha Islands. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Sigmoilinella Zheng, 1979. Accessed at: https://www.marinespecies.org/Foraminifera/aphia.php?p=taxdetails&id=531977 on 2025-09-12
Date
action
by
original description
Zheng, S.-Y. (1979). The Recent foraminifera of the Xisha Islands, Guangdong Province, China. II. <em>Studia marina sinica.</em> 15: 101-232.
page(s): p. 130, 208 [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. 130, 208 [details] Available for editors

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





From editor or global species database
Diagnosis Test elongate fusiform, twisted in appearance, subtriangular in section, chambers onehalf coil in length, with planes of coiling changing to give a sigmoiline appearance in section, later chambers added in a single plane, three to four visible from each side, chambers with floors, widest at the base and tapering through the middle and later part, terminally produced as a long neck; wall calcareous, imperforate, porcelaneous, surface smooth, or with a few low longitudinal costae; aperture rounded, at the end of the produced neck, bordered by a distinctly thickened rim, and with a short bifid tooth. Holocene; China: Xisha Islands. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]