Triloculinella
| Triloculinella Temporal range: Oligocene to Holocene | |
|---|---|
| Scientific classification | |
| Kingdom: | Rhizaria |
| Phylum: | Foraminifera |
| Order: | Miliolida |
| Superfamily: | Miliolacea |
| Family: | Hauerinidae |
| Genus: | Triloculinella Riccio, 1950 |
Triloculinella is a Miliolacean foram with a fusiform to assymmetrically 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 synomyms 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.
- Barun K. Sen Gupta 1999. Modern Foraminifera.