bforams@mikrotax - Nuttallinella florealis

bforams@mikrotax - Nuttallinella florealis bforams@mikrotax - Nuttallinella florealis

Nuttallinella florealis

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.

Classification: bf_main -> Rotaliana -> Asterigerinoidea -> Nuttallinella -> Nuttallinella florealis
Sister taxa: N. coronula, N. florealis, N. sp.

Cushman 1946 pl. 59 fig. 11.jpg
Cushman 1946 pl. 59 fig. 12.jpg
Widmark 1997 fig. 23A-C.jpg
Alegret & Thomas 2001 pl09 03.jpg
Alegret & Thomas 2001 pl09 04.jpg
Alegret & Thomas 2001 pl09 05.jpg
Bolli et al 1994 pl41 fig3-5.jpg
van Morkhoven et al 1986 pl115 01-3.jpg

Taxonomy

Citation: Nuttallinella florealis (White 1928)

Taxonomic rank: species

Basionym: Gyroidina florealis White 1928

Synonyms:

Gyroidina florealis White 1928b, p. 293, pl. 40, figs. 3a-c. [according to Alegret & Thomas 2001]
Nuttallinella florealis (White).- Van Morkhoven et al. 1986, p. 356, pl. 115, figs. 1-3.- Nomura 1991, p. 22, pl. 2, fig. 11. - Widmark and Malmgren 1992a, p. 112, pl. 2, fig. 4. - Widmark 1997, p. 53, pl. 23, figs. A-C.[according to Alegret & Thomas 2001]

Taxonomic discussion: "A slide labelled Gyroidina florealis n. sp. (No. 19899) in White's collection at the Museum of Natural History contains seven syntypes; the holotype was not designated. All have a strongly convex umbilical side; the dorsal side in the figured specimen, which could be recognized, is flat, but the syntypes vary in the degree of convexity of this side. Similar variability was found in our material, although the umbilical side is usually less convex than in the specimens described by White. In most specimens the keel is partly broken. Some specimens are slightly biconvex and do not show a clear depression in the umbilical area, and then resemble Nuttalides truempyi (Nuttall); the latter species differs by its strongly curved sutures on the involute side. N. florealis (White) is distinguished from Nuttalinella coronula (Belford) by its much more strongly convex ventral side, and narrower keel. [Alegret & Thomas 2001]"

Catalog entries: Gyroidina florealis

Type images:

x: G. florealis

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 trochospiral planoconvex, subcircular in outline, periphery sharp with an irregular keel. Dorsal side flat, evolute; sutures flush, curved and strongly oblique, commonly glassy in texture. Ventral side strongly convex, involute, with a small depression in the umbilical area; about 7 chambers in the last whorl. Dorsal sutures radial, depressed; thickened and prominent around the umbilical depression. Aperture is an interiomarginal slit extending from the periphery to the umbilicus. Wall calcareous, smooth. [Alegret & Thomas 2001]"

Wall composition:

calcareous-hyaline

Search data:

Final whorl chambers: 0->0

The morphological data given here can be used on the advanced search page. See also these notes

Biogeography and Palaeobiology

Geographic distribution

"Rare to very rare in the Mendez and Velasco Formation in sections La Ceiba, La Lajilla, El Mimbral and El Mulato sections; in section La Ceiba, it is very abundant in the Velasco Formation. [Alegret & Thomas 2001]"

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in "Holocene" stage). Data source:

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: Nuttallinella

References:

Alegret, L. & Thomas, E. (2001). Upper Cretaceous and lower Paleogene benthic foraminifera from northeastern Mexico. Micropaleontology. 47(4): 269-316. gs

Bolli, H. M., Beckmann, J. P. & Saunders, J. B. (1994). Benthic Foraminiferal Biostratigraphy of the South Caribbean Region. Cambridge University Press, Cambridge. 1-408. gs

Cushman, J. A. (1946b). Upper Cretaceous foraminifera of the Gulf coastal region of the United States and adjacent areas. U.S. Geological Survey, Professional Paper. 206: pp 1-241-. gs

Nomura, R. (1991b). Paleoceanography of upper Maestrichtian to Eocene benthic foraminiferal assemblages at Sites 752, 753 and 754, eastern Indian Ocean. Proceedings of the Ocean Drilling Program, Scientific Results. 121: 3-29. gs

van Morkhoven, F. P. C. M., et al. (1986). Cenozoic cosmopolitan deep-water benthic foraminifera. Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine. Memoire 11: 1-421. gs

White, M. P. (1928a). Some index foraminifera of the Tampico Embayment area of Mexico (Part II). Journal of Paleontology. 2(4): 280-317. gs

Widmark, J. G. V. & Malmgren, B. (1992a). Benthic foraminiferal changes across the Cretaceous-Tertiary boundary in the deep sea; DSDP sites 525, 527 and 465. Journal of Foraminiferal Research. 22(2): 81-113. gs

Widmark, J. G. V. (1997). Deep-sea benthic foraminifera from Cretaceous-Paleogene boundary strata in the South Atlantic- taxonomy and paleoecology. Fossils and Strata. 43: 1-94. gs

Nuttallinella florealis compiled by the bforams@mikrotax project team viewed: 15-7-2026

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Short stable page link: https://mikrotax.org/bforams/index.php?id=2001496 Go to Archive.is to create a permanent copy of this page - citation notes

bforams@mikrotax has been supported by US IODP Science Support Program and by the Geologic TimeScale Foundation
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