NB This site is under active development, current content in the main database is primarily from Bolli et al 1994, Hayward et al. 2012, Holbourn et al. 2013, Holbourn and Kaminski 1997, Alegret & Thomas 2001, and Katz et al. 2003. It is intended to expand and develop this to provide rather comprehensive coverage of Mesozoic and Cenozoic deep-sea benthic foraminifera.
Truncatulina pygmaea Hantken. –Brady, 1884, p. 666, pl. 95, figs. 9–10. [according to Holbourn et al. 2013]
Eponides bradyi Earland. –Barker, 1960, pl. 95, figs. 9–10. [according to Holbourn et al. 2013]
Nuttallides umbonifera (Cushman). –Miller and Katz, 1987, p. 136, pl. 5, fig. 5. –Hermelin, 1989, p. 69, pl. 12, figs. 15–17. –Thomas, 1990, p. 590. [according to Holbourn et al. 2013]
Osangulariella umbonifera (Cushman). –Jones, 1994, p. 99, pl. 95, fi g s. 9 – 10. [according to Holbourn et al. 2013]
Nuttallides umboniferus (Cushman). –Nomura, 1995, p. 276, pl. 3, fig. 2. [according to Holbourn et al. 2013]
Taxonomic discussion: Nuttallides umbonifera (Cushman) is regarded as an indicator of Antarctic Bottom Water in the Pacific and Indian Oceans (Corliss, 1979). In the Weddell Sea it is associated with carbonate corrosive bottom water (Mackensen et al., 1990). [Holbourn et al. 2013]
NB These concise distinguishing features statements are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus. They are being edited as the site is developed and comments on them are especially welcome.
Description
Morphology: Test forms a small, lenticular trochospire; slightly lobulate in outline, and unequally biconvex in cross-section, with a subacute, keeled, imperforate periphery. The involute umbilical side exhibits a clear, imperforate, umbilical boss, and is more strongly convex than the evolute spiral side. The six to twelve crescentic chambers in the final whorl increase slowly in size, and are separated by slightly depressed, slightly limbate, strongly oblique sutures curving into the peripheral keel on the spiral side, and by slightly depressed, sinuous sutures on the umbilical side. Chamber walls are calcareous, finely perforate, and smooth. The primary aperture is an interiomarginal slit extending from the umbilical boss nearly to the periphery. [Holbourn et al. 2013] Wall composition:calcareous-hyaline
The morphological data given here can be used on the advanced search page. See also these notes
Biogeography and Palaeobiology
Geographic distribution Worldwide. Recorded from the North Atlantic (Miller and Katz, 1987), the Weddell Sea, Antarctica (Thomas, 1990), the Gulf of Mexico (Katz and Miller, 1993), the Kerguelen Plateau (Mackensen and Berggren, 1992), the Indian Ocean (Nomura, 1995), and the Pacific Ocean (Hermelin, 1989). Bathymetry remarksPrimarily lower bathyal to abyssal. Abyssal, greater than 3.5 kilometers (Miller and Katz, 1987), lower bathyal (Thomas, 1990), lower bathyal, rarely upper bathyal (Katz and Miller, 1993). [Holbourn et al. 2013]
Summary of depth range: lower bathyal -> lower abyssal (i.e. 1000 -> 10000 m)
Biostratigraphic distribution
Geological Range: Notes: Latest Paleocene or Early Eocene to Recent. Common to abundant in Oligocene to Miocene (Miller and Katz, 1987). Rare from topmost Paleocene to Early Eocene, common from Middle Eocene to Pleistocene (Thomas, 1990). First common occurrence at the Middle–Late Eocene boundary in ODP samples from the Kerguelen Plateau (Mackensen and Berggren, 1992). Last occurrence (top): Extant. Data source: Holbourn et al. 2013 First occurrence (base): within Late Paleocene Sub-Epoch (55.96-59.24Ma, base in Thanetian stage). Data source: Holbourn et al. 2013
Plot of occurrence data: NB The ranges given for genera and higher taxa are the total ranges of species included in that taxon in this database - so the true total range of the taxon will usually be longer
Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested. Parent: Nuttallides
Primary source for this page: Holbourn et al. 2013
References:
Barker, R. W. (1960). Taxonomic notes on the species figured by H.B. Brady in his report on the foraminifera dredged by H.M.S. Challenger during the years 1873–1876. SEPM Special Publication. 9: 1-238. gs
Brady, H. B. (1884). Report on the foraminifera dredged by H.M.S. Challenger during the years 1873–1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-1876. 9: 1-814. gs
Corliss, B. H. (1979b). Recent deep-sea benthonic foraminiferal distributions in the southeast Indian Ocean: inferred bottom water routes and ecological implications. Marine Geology. 31: 115-138. gs
Cushman, J. A. (1933f). Some new Recent foraminifera from the tropical Pacific. Contributions from the Cushman Laboratory for Foraminiferal Research. 9: 77-95. gs
Hermelin, J. O. R. (1989). Pliocene benthic foraminifera from the Ontong-Java Plateau (Western Equatorial Pacific Ocean): faunal response to changing paleoenvironment. Cushman Foundation for Foraminiferal Research, Special Publication. 26: 1-143. gsO
Holbourn, A., Henderson, A. S. & MacLeod, N. (2013). Atlas of Benthic Foraminifera. Natural History Museum, London. 1-651. gs
Jones, R. W. (1994). The Challenger Foraminifera. Oxford University Press, Oxford. 1-149. gs
Katz, M. E. & Miller, K. G. (1991). Early Paleogene benthic foraminiferal assemblages and stable isotopes in the Southern Ocean. Proceedings of the Ocean Drilling Program, Scientific Results. 114: 481-512. gs
Katz, M. E. & Miller, K. G. (1993a). Latest Oligocene to Earliest Pliocene benthic foraminiferal biofacies of the northeastern Gulf of Mexico. Micropaleontology. 39(4): 367-403. gs
Mackensen, A. & Berggren, W. A. (1992). Paleogene benthic foraminifers from the southern Indian Ocean (Kerguelen Plateau): biostratigraphy and paleoecology. Proceedings of the Ocean Drilling Program, Scientific Results. 120: 603-630. gs
Mackensen, A., Grobe, H., Kuhn, G. & Fütterer, D. K. (1990). Benthic foraminiferal assemblages from the eastern Weddell Sea between 68° and 73° S: distribution, ecology and fossilization potential. Marine Micropaleontology. 16: 241-283. gs
Miller, K. G. & Katz, M. E. (1987b). Oligocene to Miocene benthic foraminiferal and abyssal circulation changes in the north Atlantic. Micropaleontology. 33(2): 97-149. gs
Takata, H. & Nomura, R. (2005). Oligocene benthic foraminifers from the eastern Equatorial Central Pacific, Sites 1218 and 1219, ODP Leg 199. Proceedings of the Ocean Drilling Program, Scientific Results. 199: -. gs
Thomas, E. (1990a). Late Cretaceous through Neogene benthic foraminifers. Proceedings of the Ocean Drilling Program, Scientific Results. 113: 571-594. gs
Nuttallides umbonifera compiled by the bforams@mikrotax project teamviewed: 15-7-2026
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