Fusulinida
Order of foraminifera (fossil)
Nº Q134577 ★★★
Rare · Nature
Fusulinida
Order of foraminifera (fossil)
The Fusulinida is an extinct order within the Foraminifera in which the tests are traditionally considered to have been composed of microgranular calcite. Like all forams, they were single-celled organisms. In advanced forms the test wall was differentiated into two or more layers.
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From Wikipedia
The Fusulinida is an extinct order within the Foraminifera in which the tests are traditionally considered to have been composed of microgranular calcite. Like all forams, they were single-celled organisms. In advanced forms the test wall was differentiated into two or more layers. Loeblich and Tappan, 1988, gives a range from the Lower Silurian to the Upper Permian, with the fusulinid foraminifera going extinct with the Permian–Triassic extinction event. While the latter is true, a more supported projected timespan is from the Mid-Carboniferous period.
Text: Wikipédia, CC BY-SA 4.0. · Image: Wilson44691 (CC BY-SA 3.0) ·
