Rzehakinidae

Rzehakinidae
Systematics
without rank: Rhizaria without rank: Retaria without rank: Foraminifera (Foraminifera) Order : Lituolida Superfamily : Rzehakinacea Family : Rzehakinidae
Scientific name of the  superfamily
Rzehakinacea
Cushman , 1933
Scientific name of the  family
Rzehakinidae
Cushman, 1933

The Rzehakinidae are a family of shell-bearing, sea-dwelling unicellular organisms from the group of foraminifera and the only family in the superfamily of the Rzehakinacea .

features

The shells of the Rzehakinidae are agglutinated, i.e. composed of fine particles of organic origin that are taken up by the animals from the sediment . They are planispiral and comprise either two or more seldom three chambers per turn or the number of chambers increases by one as the number of planes progresses - similar to the Miliolida . The housings are always imperforate.

Systematics

The Rzehakinidae are the only family in the superfamily of the Rzehakinacea. Family and superfamily were first described in 1933 by the American paleontologist Joseph Augustine Cushman . They have been fossilized since the Cretaceous Period .

Genera are:

• Ammoflintina
• Birsteiniolla
• Miliammina
• Psamminopelta
• Rothina
• Rzehakina
• Silicomassilina
• Silicosigmoilina
• Spirolocammina
• Spirosigmoilinella
• Trilocularena

proof

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