Forams

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Agglutinated Foram Tests

Return to Foram Test Construction for more information on agglutinated tests.

Benthic foram collected offshore California. Test is composed of volcanic glass shards.
Benthic foram collected offshore California. Test is composed of volcanic glass shards.
Notice the different grain sizes, shapes and compositions.
(Credit: Alicé Davis (c) 2003 MBARI, used by permission)

Specimen collected from the Florida Keys. Notice the tiny grains forming the test.
Textularia agglutinans,
Specimen collected from the Florida Keys. Notice the tiny grains forming the test.
Grains are different sizes but the same composition.
(Credit: Heidi Crevison Souder; used by permission Foraminifers as Bioindicators website,
University of South Florida, St. Petersburg)

Full view test is composed of sponge spicules (SiO2) collected by the foram from the sea floor.
Close-up view test is composed of sponge spicules (SiO2) collected by the foram from the sea floor.
Technitella legumen,
This test is composed of sponge spicules (SiO2) collected by the foram from the sea floor.
Full view is shown on top. Close-up view of test wall shown on the bottom.
(Images from the Foram Gallery, used by permission Dr. Leonid Polyak, Ohio State University)

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