Ammodiscidae

Ammodiscidae
Systematics
without rank: Sar without rank: Rhizaria without rank: Retaria without rank: Foraminifera (Foraminifera) without rank: Tubothalamea without rank: Ammodiscidae
Scientific name
Ammodiscidae
Reuss , 1862

The Ammodiscidae are a group of shell-bearing, sea-dwelling unicellular organisms from the group of foraminifera .

features

The two-chamber shells of the Ammodiscidae are agglutinated, that is, they are composed of individual particles that are taken up by the animals from the sediment . The first shell chamber , the proloculus , is round, followed by a second, tubular chamber, which is rolled up in a plane spiral . It can have irregular constrictions and the aperture is located at its end .

Systematics

The Ammodiscidae were first described as a family and superfamily by the paleontologist August Emanuel von Reuss in 1862 . They have been fossilized since the Lower Cambrian .

Some genera are:

• Ammodiscus
• Ammolagena
• Glomospira

proof

• Alfred R. Loeblich, Jr., Helen Tappan: Foraminiferal genera and their classification , E-Book des Geological Survey Of Iran , 2005, Online