Ammonia (foraminifera)
Genus of single-celled organisms
From Wikipedia, the free encyclopedia
Ammonia is a genus of marine foraminifers. It is one of the most abundant foraminifer genera worldwide and is found in sheltered, shallow marine intertidal environments, sometimes in brackish waters.[2]
| Ammonia | |
|---|---|
| |
| Ammonia tepida | |
Scientific classification  | |
| Domain: | Eukaryota |
| Supergroup: | Rhizaria |
| Phylum: | Foraminifera |
| Class: | Globothalamea |
| Order: | Rotaliida |
| Family: | Ammoniidae |
| Subfamily: | Ammoniinae |
| Genus: | Ammonia Brünnich, 1772 |
| Type species | |
| Nautilus beccarii | |
| Species[1] | |
| |
| Synonyms[1] | |
| |
Species
The classification of the genus Ammonia in species is controversial. While several different forms exist, many authors consider the genus to consist of a single species, Ammonia beccarii, with many ecophenotypes. However, recent molecular studies revealed that the genus consists of many species, although they may be difficult to discriminate based on morphology.[3]
Based on a comparison between molecular results and morphology, the following species appear to be valid:
- Ammonia aberdoveyensis Haynes, 1973
- Ammonia aomoriensis (Asano, 1951)
- Ammonia aoteana (Finlay, 1940)
- Ammonia batava (Hofker, 1951)
- Ammonia beccarii (Linnaeus, 1758)
- Ammonia convexa (Collins, 1958)
- Ammonia irridescens (Arnal, 1958) (maybe a synonym of A. tepida)
- Ammonia limnetes (Todd & Bronnimann, 1957)
- Ammonia sobrina (Shupack, 1934)
- Ammonia tepida (Cushman, 1926)
Additionally, several other molecular types have been discovered that do not match any of the described species and thus possibly represent new taxa.[3]