Foraminifera taxon details
Oridorsalis Andersen, 1961
112178 (urn:lsid:marinespecies.org:taxname:112178)
accepted
Genus
Oridorsalis westi Andersen, 1961 (type by original designation)
- Species Oridorsalis almasaensis Popescu, 1975 †
- Species Oridorsalis beisseli (Schijfsma, 1946) †
- Species Oridorsalis biconvexus (Marie, 1941) †
- Species Oridorsalis ecuadorensis (Galloway & Morrey, 1929) †
- Species Oridorsalis marcus Saidova, 1975
- Species Oridorsalis nanus (Reuss, 1850) †
- Species Oridorsalis pauciapertura Belford, 1966 †
- Species Oridorsalis plummerae (Cushman, 1948) †
- Species Oridorsalis praemegastomus (Myatlyuk, 1953) †
- Species Oridorsalis primitivus Kaiho, 1998 †
- Species Oridorsalis sidebottomi (Earland, 1934)
- Species Oridorsalis stellatus (Silvestri, 1898) †
- Species Oridorsalis subtener (Galloway & Wissler, 1927) †
- Species Oridorsalis umbonatus (Reuss, 1851)
- Species Oridorsalis variapertura Belford, 1966 †
- Species Oridorsalis westi Andersen, 1961
- Species Oridorsalis subcandidulus (Grzybowski, 1896) † accepted as Eponides subcandidulus (Grzybowski, 1896) †
- Species Oridorsalis tener (Brady, 1884) accepted as Oridorsalis umbonatus (Reuss, 1851) (unaccepted > junior subjective synonym, In opinion of Kawagata and Kamahashi, 2016)
- Species Oridorsalis tenerus (Brady, 1884) accepted as Oridorsalis tener (Brady, 1884) accepted as Oridorsalis umbonatus (Reuss, 1851) (tener, tenera, tenerum adjective I class 'tender, soft, delicate')
- Species Oridorsalis turkiana Anan, 2026 † (unaccepted > unavailable name, Name published in an electronic publication unregistered in ZooBank, invalid for nomenclatural purposes according to the 2012 Amendment of Articles 8, 9, 10, 21 and 78 of the International Code of Zoological Nomenclature)
- Species Oridorsalis umbonata (Reuss, 1851) accepted as Oridorsalis umbonatus (Reuss, 1851) (Genus is masculine)
marine, brackish, fresh, terrestrial
recent + fossil
masculine
Andersen, H. V. (1961). Foraminifera of the mudlumps, lower Mississippi River Delta. <em>In: Genesis and Paleontology of the Mississippi River Mudlumps: Louisiana Geol. Survey, Geol. Bull.</em> 35, pt. 2, 208 p.
page(s): p. 107 [details] Available for editors
[request]
page(s): p. 107 [details] Available for editors
[request]
Diagnosis Test lenticular, a low trochospiral coil, spiral side evolute, with three slowly enlarging whorls, four to five chambers in...
Diagnosis Test lenticular, a low trochospiral coil, spiral side evolute, with three slowly enlarging whorls, four to five chambers in the final whorl, sutures radial and depressed, umbilical side involute and sutures sinuate, reflecting the position of the secondary sutural openings, periphery carinate, peripheral outline lobulate; wall calcareous, hyaline, optically granular, very finely perforate, surface smooth; primary aperture interiomarginal, extending from near the periphery almost to the closed umbilicus, small secondary openings occur at the junction of spiral and intercameral sutures on the spiral side, and similar sutural openings at a sinuate bend in the sutures near their midpoint on the umbilical side. Oligocene to Holocene; North America; Europe; Caribbean; Japan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2021). World Foraminifera Database. Oridorsalis Andersen, 1961. Accessed at: https://marinespecies.org/foraminifera.../aphia.php?p=taxdetails&id=112178 on 2026-05-16
Date
action
by
2006-09-26 06:56:50Z
changed
Martinez, Olga
original description
Andersen, H. V. (1961). Foraminifera of the mudlumps, lower Mississippi River Delta. <em>In: Genesis and Paleontology of the Mississippi River Mudlumps: Louisiana Geol. Survey, Geol. Bull.</em> 35, pt. 2, 208 p.
page(s): p. 107 [details] Available for editors [request]
basis of record Gross, O. (2001). Foraminifera, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 60-75 (look up in IMIS) [details]
additional source Neave, S.A. (1939 - 1996). Nomenclator Zoologicus. vol. 1-10 Online., available online at https://www.checklistbank.org/dataset/126539/about [details]
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]
additional source Revets, S. A. (1996). The generic revision of five families of Rotaliine Foraminifera - Part 2. The Anomalinidae, Alabaminidae, Cancrisidae & Gavelinellidae. <em>Cushman Foundation for Foraminiferal Research, Special Publication.</em> 57-113., available online at http://www.cushmanfoundation.org/specpubs/sp34.pdf [details] Available for editors [request]
page(s): p. 107 [details] Available for editors
[request]basis of record Gross, O. (2001). Foraminifera, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 60-75 (look up in IMIS) [details]
additional source Neave, S.A. (1939 - 1996). Nomenclator Zoologicus. vol. 1-10 Online., available online at https://www.checklistbank.org/dataset/126539/about [details]
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]additional source Revets, S. A. (1996). The generic revision of five families of Rotaliine Foraminifera - Part 2. The Anomalinidae, Alabaminidae, Cancrisidae & Gavelinellidae. <em>Cushman Foundation for Foraminiferal Research, Special Publication.</em> 57-113., available online at http://www.cushmanfoundation.org/specpubs/sp34.pdf [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Test lenticular, a low trochospiral coil, spiral side evolute, with three slowly enlarging whorls, four to five chambers in the final whorl, sutures radial and depressed, umbilical side involute and sutures sinuate, reflecting the position of the secondary sutural openings, periphery carinate, peripheral outline lobulate; wall calcareous, hyaline, optically granular, very finely perforate, surface smooth; primary aperture interiomarginal, extending from near the periphery almost to the closed umbilicus, small secondary openings occur at the junction of spiral and intercameral sutures on the spiral side, and similar sutural openings at a sinuate bend in the sutures near their midpoint on the umbilical side. Oligocene to Holocene; North America; Europe; Caribbean; Japan. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]Ecology Epifaunal, free; mud; detritivore; marine; <4 ?C; bathyal. [details]
From editor or global species database
Image from typetaxon