Valvulinidae
| Valvulinidae Temporal range: Paleocene - Recent. | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| (unranked): | SAR |
| (unranked): | Rhizaria |
| Superphylum: | Retaria |
| Phylum: | Foraminifera |
| Order: | Textulariida |
| Superfamily: | Textulariacea |
| Family: | Valvulinidae Berthelin, 1880 |
| Subfamilies | |
|
Valvulininae, Siphobigenerininae, and Tritaxilininae | |
The Valvulinidae is a family of Paleocene to recent benthic textulariid Foraminifera characterized by trochospiral tests in the early stage which may become uniserial in the later. Walls are of cemented agglutinated material and have cavities created by micro-tubules, i.e. are canaliculate. Apertures have a valvular tooth or flap, at least in early stage, but may become multiple and areal in the later stage.
Three subfamilies have been defined, the Valvulininae, Siphobigenerininae, and Tritaxilininae.
References
- Loeblich and Tappan (1988). "Valvuliniae". Foraminiferal genera and their classification.
- "Foraminifera".
This article is issued from Wikipedia - version of the 10/31/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.