Ammolagena
| Ammolagena | ||||||||||||
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| Scientific name | ||||||||||||
| Ammolagena | ||||||||||||
| Bucket & Fickert , 1899 |
Ammolagena is a genus of shell -bearing, sea-dwelling unicellular organisms from the group of foraminifera .
features
The shells are usually firmly attached to fragments of mussel shells or other foraminifera and can reach a length of up to one millimeter. They are reddish-brown, the surface is smooth and shiny. They are finely agglutinated, i.e. they are composed of individual particles on a layer of protein-based putty, which are taken up by the animals from the sediment .
The first shell chamber , the proloculus , is large and ovoid, the second narrower, straight tubular. The rounded aperture is at the end of the second chamber.
Ammolagena can be found between 180 and 3400 meters depth in the North and South Atlantic, the Mediterranean and the South Pacific. The genus is only recently known.
Systematics
The genus was first described in 1899 by Theodor Eimer and C. Fickert using a specimen that had previously been classified as a variety of Trochammina irregularis .
- Ammolagena clavata (type species)
proof
- Alfred R. Loeblich, Jr., Helen Tappan: Foraminiferal genera and their classification , E-Book des Geological Survey Of Iran , 2005, Online