Quinqueloculininae

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Quinqueloculininae
QuinqueloculinaDonegalBay.jpg
Quinqueloculina sp. from Donegal Bay, Ireland.
Scientific classification
Domain:
(unranked):
SAR
(unranked):
Superphylum:
Phylum:
Class:
Order:
Superfamily:
Family:
Subfamily:
Quinqueloculininae
Genera

Cruciloculina
Dentostomina
Flintina
Pateoris
Pyrgo
Pyrgoella
Quinqueloculina
Sigmoilina
Sigmoilopsis
Siphonaperta
Siphonaptera
Spirosigmoilina
Triloculina

Quinqueloculininae is a subfamily in the family Miliolidae of miliolid foraminifera. [1]

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Miliolida Order of single-celled organisms

The Miliolida are an order of foraminifera with calcareous, porcelacous tests that are imperforate and commonly have a pseudochitinous lining. Tests are composed of randomly oriented calcite needles that have a high proportion of magnesium along with organic material. Tests lack pores and generally have multiple chambers.

Soritoidea Superfamily of protists

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Miliolidae Family of single-celled organisms

Miliolidae is a family in the superfamily Miliolacea of miliolid foraminifera.

Pyrgo may refer to:

<i>Quinqueloculina</i> Genus of single-celled organisms

Quinqueloculina is a genus of foraminifera in the family Miliolidae.

Idalina is a genus of foraminifera included in the Hauerinidae, (Miliolida), that lived during the latter part of the Late Cretaceous.

German submarine U-187 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine built for service during World War II. Her keel was laid down on 6 August 1941 by DeSchiMAG AG Weser in Bremen as yard number 1027. She was launched on 16 March 1942 and commissioned on 23 July with Kapitänleutnant Ralph Münnich in command.

Miliamellus is a genus of Cenozoic benthic foraminifera with tests made of imperforate opaline silica. It is the only genus in the order Silicoloculinida and the family Silicoloculinidae. It is sometimes referred to by the junior synonym Silicoloculina.

Globulina is a genus of Foraminifera with an ovate to globular test, included in the Polymorphinidae, Notocariacea, that has been extant since the Middle Jurassic (Callovian).

Triloculina is a genus of foraminifera in the order Miliolida, included in the Quinqueloculininae. The test is three, chambers each a half coil in length. Early chambers, at least in the microspheric generation, in quinqueloculinan arrangement, later becoming triloculine with successive chambers added in planes 120 degrees apart. Only the final three chambers are visible externally. The aperture is terminal, at the end of the final chamber, with a bifid tooth in adult forms. As with the entire order, the test is composed of imperforate, porcelaneous calcite.

Sigmoilina ia a miliolid genus, referring to the foraminiferal order Miliolida, characterized by an assymmetricall biconvex test formed by strongly overlapping chambers, one-half coil in length, that form a sigmoid (S-shaped) curve in cross section. The strongly overlapping chambers obliterate earlier ones from view resulting in the compressed biloculine appearance, differing from the squat, depressed biloculine form of Pyrgo and Biloculina. The test, as for all Miliolida, is porcelaneous and imperphorate, the terminal aperture, with tooth, the only point of egress and ingress for the animal.

Sigmoilinita is a miliolid genus (Foraminifera) with an ovate to fusuform test that becomes flattened with growth. Chambers are tubular, one-half coil in length, at first added in a sigmoiline (S-shaped) series starting at slightly more than 180° apart. the angle gradually decreasing until the later whorls are planispiral. Chambers are numerous, the wall narrow. imperforate, porcelaneous. The aperture at the end of the final chamber. may have a weakly developed tooth

Sigmoilinopsis is a genus of miliolid Foraminifera, with an ovate test, chambers one-half coil in length, arranged in rapidly changing planes in the early stage resulting in two spiralling series that appear sigmoid in section, gradually becoming planispiral in the adult. Walls are thick, porcelaneous but enclosing a large quantity of agglutinated quartz particles, sponge spicules, and shell fragments; the aperture terminal, rounded, with a small tooth.

Hauerinidae is a large and diverse family of miliolid forams that includes genera distributed among various subfamilies in the Treatise as well as genera named and described since.

References

  1. HAAKE (1971). "ULTRASTRUCTURES OF MILIOLID WALLS". Journal of Foraminiferal Research. 1 (4): 187–189. doi:10.2113/gsjfr.1.4.187. Accessed 2015-02-13.