bforams@mikrotax - Hormosinella distans

bforams@mikrotax - Hormosinella distans bforams@mikrotax - Hormosinella distans

Hormosinella distans

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 -> Hormosinana -> Hormosinella -> Hormosinella distans
Sister taxa: H. carpenteri, H. distans, H. sp.

Taxonomy

Citation: Hormosinella distans (Brady), 1881

Taxonomic rank: species

Basionym: Lituola (Reophax) distans Brady, 1881

Synonyms:

Reophax distans. –Brady, 1884, p. 296, pl. 31, figs. 18–22. –Barker, 1960, pl. 31, figs. 18–22. [according to Holbourn et al. 2013]
Reophax distans Brady var. delicatulus Cushman, 1920, p. 13, pl. 4, fig. 2. [according to Holbourn et al. 2013]
Hormosinella distans (Brady). –Shchedrina, 1969, p. 170. –Loeblich and Tappan, 1987, p. 57, pl. 44, figs. 6–9. –Jones, 1994, p. 38, pl. 31, figs. 18–22. –Kaminski and Gradstein, 2005, pp. 246–249, fig. 45, pl. 45. [according to Holbourn et al. 2013]
Hormosinella distans antarctica Saidova, 1975, p. 53, pl. 10, fig. 5. [according to Holbourn et al. 2013]
Hormosinella distans tristus Saidova, 1975, p. 53, pl. 10, fig. 4. [according to Holbourn et al. 2013]
Reophax distans Brady. –Schröder, 1986, p. 44, pl. 16, figs. 3–5, 9. [according to Holbourn et al. 2013]

Taxonomic discussion: Type species of the genus Hormosinella Shchedrina, 1969. [Holbourn et al. 2013]

Catalog entries: Lituola (Reophax) distans, Reophax distans, Reophax distans delicatulus, Hormosinella distans antarctica, Hormosinella distans tristus

Type images:

syntype: L. (Reophax) distans
x: L. (Reophax) distans

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:

Elongate, uniserial test, rectilinear or slightly arcuate, composed of subcylindrical or fusiform, inflated chambers, tapering at both ends and separated by elongate, narrow, stolon-like necks. Chamber walls are thin and agglutinated, consisting of a single layer of well-cemented medium or coarse grains. The primary aperture is terminal, and round at the open end of the neck. [Holbourn et al. 2013]

Wall composition:

agglutinated

Search data:

TEST: elongate-cylindrical, separated chambers, uniserial, APERTURE: circular, terminal, produced,

Final whorl chambers: 1->1

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

Biogeography and Palaeobiology

Geographic distribution

Worldwide. See Observed Occurrences in Kaminski and Gradstein (2005).

Bathymetry remarks

Bathyal to abyssal. Reported between 355 and 2775 fathoms at “Challenger” stations (Jones, 1994). [Holbourn et al. 2013]

Summary of depth range: upper bathyal -> lower abyssal (i.e. 200 -> 10000 m)

Biostratigraphic distribution

Geological Range:
Notes: Late Cretaceous to Recent.
Last occurrence (top): Extant. Data source:
First occurrence (base): within Late Cretaceous Epoch (66.04-100.50Ma, base in Cenomanian stage).

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

Hormosinella

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. (1881a). Notes on some of the reticularian Rhizopoda of the Challenger Expedition, Part III. Quarterly Journal of Microscopical Science. 21: 31-71. 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

Cushman, J. A. (1920). The foraminifera of the Atlantic Ocean. Part 2. Lituolidae. U.S. National Museum Bulletin. 104(2): 1-111. gs

Kaminski, M. A. & Gradstein, F. M. (2005). Atlas of Palaeogene cosmopolitan deep-water agglutinated foraminifera. Grzybowski Foundation Special Publication. (10): 1-547. gs

Loeblich, A. R. Jr & Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold, New York. 1-970. gs

Saidova, Kh. M. (1975). Bentosnye foraminifery Tikhogo Okeana, 3 vols. Institut Okeanologii P.P. Shirshova, Akademiya Nauk SSSR, Moscow. 1-875. gs

Schröder, C. J. (1986b). Deep-Water Arenaceous Foraminifera in the Northwest Atlantic Ocean. Canadian Technical Report of Hydrography and Ocean Sciences. 71: 1-191. gs

Shchedrina, Z. G. (1969). On some changes in the systematics of the families Astrorhizidae and Reophacidae (Foraminifera). Voprosyi Mikropaleontologii. 11: 157-170. gs

Hormosinella distans compiled by the bforams@mikrotax project team viewed: 18-6-2026

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