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Triloculinella

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Triloculinella is a genus of Miliolacean forams with a fusiform to asymmetrically globular test. Inner chambers, one-half coil in length, are crypto-quinqueloculine to quinqueloculine in arrangement; The final three to five visible from the exterior. The aperture is an arch at the end of the final chamber, largely covered by a broad apertural flap, which distinguishes the genus from Triloculina, Quinqueloculina and such, characterized by a more narrow tooth. The wall, as for all miliolids, is calcareous, imperforate, porcelaneous.

The World Foraminifera Datavase [1] has Quinquinella Vella, 1977, and Scutuloris Loeblich & Tappan, 1953 as synonyms of Triloculinella. Shows nine recognized species with two more accepted as Miliolinella and one other as Quinqueloculina. Defines Foraminifera as a phylum, rather than a class is in Sen Gupta 1999, within the Infrakingdom Rhizaria.

Imiges and illustrations of Triloculinella can be found at Triloculinella Foraminifera and Triloculinella in the World Foramiinifera Database.

References

  • Alfred R. Loeblich Jr and Helen Tappan, 1964. Sarcodina Chiefly "Thecamoebians" and Foraminiferida; Treatise on Invertebrate Paleontology, Part C Protista 2. Geological Society of America and University of Kansas Press.
  • Alfred R. Loeblich Jr and Helen Tappan,1988. Forminiferal Genera and their Classification. [1]
  • Barun K. Sen Gupta 1999. Modern Foraminifera.[2]
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Triloculinella: Brief Summary

provided by wikipedia EN

Triloculinella is a genus of Miliolacean forams with a fusiform to asymmetrically globular test. Inner chambers, one-half coil in length, are crypto-quinqueloculine to quinqueloculine in arrangement; The final three to five visible from the exterior. The aperture is an arch at the end of the final chamber, largely covered by a broad apertural flap, which distinguishes the genus from Triloculina, Quinqueloculina and such, characterized by a more narrow tooth. The wall, as for all miliolids, is calcareous, imperforate, porcelaneous.

The World Foraminifera Datavase has Quinquinella Vella, 1977, and Scutuloris Loeblich & Tappan, 1953 as synonyms of Triloculinella. Shows nine recognized species with two more accepted as Miliolinella and one other as Quinqueloculina. Defines Foraminifera as a phylum, rather than a class is in Sen Gupta 1999, within the Infrakingdom Rhizaria.

Imiges and illustrations of Triloculinella can be found at Triloculinella Foraminifera and Triloculinella in the World Foramiinifera Database.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
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wikipedia EN