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Ammodiscus species form agglutinated tests that consist of a long, coiled tube. This species is named after the Gullmarfjord in Norway, although this specimen was collected in the Oslofjord. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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The Latin word "glomus" means "a ball of yarn". Glomospira species make a test that has a single chamber in the center, surrounded by a very long tubular second chamber that winds around it. Sample collected in an inlet of the Oslofjord, Norway. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
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Photo of the species holotype. The ventral side of the test is to the right. The test is 0.8 mm. from the tip of the cone to the base. Image courtesy of David B. Scott, Dalhousie University. This image was originally published in
Palaeologica Electronica, vol. 3, issue 2, and is used with the kind permission of that journal and the Paleontological Association.
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View of the test, from the top. This is a photo of the species holotype. Image courtesy of David B. Scott, Dalhousie University. This image was originally published in
Palaeologica Electronica, vol. 3, issue 2, and is used with the kind permission of that journal and the Paleontological Association.
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Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 318, Figs. 1-3: L. Jurassic (L. Pliensbachian), St. Vincent Sterlange, Dept. Vendée, France. 1-3, Spiral, umbilical, and edge views of topotype, x 257.
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Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 319, Figs. 11-16: L. Cretaceous (Aptian), South Australia. 11, Weathered specimen showing internal structure, magnification not given; 12, 13, side and apical views of hypotype, x 100; 14, exterior, magnification not given; 15, 16, side views, x 100 (from Ludbrook, 1966).
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Patellina corrugata sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 86
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Image source: Cushman, J.A. 1931. The Foraminifera of the Atlantic Ocean. Part 8. Rotaliidae, Amphisteginidae, Calcarinidae, Cymbaloporettidae, Globorotaliidae, Anomalinidae, Planorbulinidae, Rupertiidae and Homotremidae. Bull. U.S. Natl. Mus. 104.