Jump to content

Ammonia (genus)

From Wikipedia, the free encyclopedia

Ammonia
Ammonia tepida
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Phylum: Retaria
Subphylum: Foraminifera
Class: Globothalamea
Order: Rotaliida
Family: Ammoniidae
Subfamily: Ammoniinae
Genus: Ammonia
Brünnich, 1772
Type species
Nautilus beccarii
Species[1]
Synonyms[1]
  • Challengerella Billman, Hottinger & Oesterle, 1980
  • Hammonia Soldani, 1789
  • Pseudohelenina Collins, 1974
  • Rolshausenia Bermúdez, 1952
  • Rotalia (Turbinuline)
  • Strebloides Bermúdez & Seiglie, 1963
  • Streblus Fischer de Waldheim, 1817
  • Turbinulina Risso, 1826
Ammonia beccarii, showing characteristic coiled shell

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]

Species

[edit]

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:

Additionally, several other molecular types have been discovered that do not match any of the described species and thus possibly represent new taxa.[3]

References

[edit]
  1. ^ a b Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Ammonia Brünnich, 1771. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=112078 on 16 June 2024
  2. ^ Walton, W. R.; Sloan, B. J. (1990). "The genus Ammonia Bruennich, 1772; its geographic distribution and morphologic variability". The Journal of Foraminiferal Research. 20 (2): 128–156. Bibcode:1990JForR..20..128W. doi:10.2113/gsjfr.20.2.128. ISSN 0096-1191.
  3. ^ a b Hayward, Bruce W.; Holzmann, Maria; Grenfell, Hugh R.; Pawlowski, Jan; Triggs, Chris M. (2004). "Morphological distinction of molecular types in Ammonia – towards a taxonomic revision of the world's most commonly misidentified foraminifera". Marine Micropaleontology. 50 (3–4): 237–271. Bibcode:2004MarMP..50..237H. doi:10.1016/S0377-8398(03)00074-4. ISSN 0377-8398.