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Fornasini, C. (1903). Illustrazione di specie orbignyane di «Nummulitidae» istituite nel 1826. Bollettino della Società Geologica Italiana. 22: 395-397., available online at (http://www.biodiversitylibrary.org/item/210295#page/599/) page(s): p. 396 pl. 14 fig. 4
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Operculina gaimardi sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 112
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Image source: Cushman, J.A. 1933. The Foraminifera of the Tropical Pacific Collections of the ”Albatross”. Part 2. Lagenidae to Alveolinellidae. Bull. U.S. Nation. Mus 161: vi+79 pp.+19 pls.
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Image source: Goës, A. 1894. A Synopsis of the Arctic and Scandinavian recent marine Foraminifera hitherto discovered. Kong. Svenska Vetenskaps-Akademiens Handlingar 25(9): 1-127 + 25 pls. (Notae numerorum tenues mensuram indicant millimetricam).
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Image source: Cushman, J.A. 1914. A Monograph of the Foraminifera of the North Pacific Ocean. Part IV. Chilostomellidae, Globigerinidae, Nummulitidae. Bull. U.S. Nation. Mus 71: vi+46 pp.+19 pls.
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Image source: Cushman, J.A. 1921. Foraminifera of the Philippine and adjacent seas. Bull. U.S. Natl. Mus. 100(4).
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Image source: Cushman, J.A. 1921. Foraminifera of the Philippine and adjacent seas. Bull. U.S. Natl. Mus. 100(4).
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Image source: Cushman, J.A. 1921. Foraminifera of the Philippine and adjacent seas. Bull. U.S. Natl. Mus. 100(4).
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Credit: Bernard Remaud Identification: Bruno Cahuzac (Université de Bordeaux), François Le Coze Specimen from Saint-Paul-lès-Dax (France) Chattian
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Credit: Bernard Remaud Identification: Bruno Cahuzac (Université de Bordeaux), François Le Coze Specimen from Saint-Paul-les Dax (France) Chattian
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Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at (http://biodiversitylibrary.org/page/5753959) page(s): p. 281 n° 1 Model n° 80
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Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at (http://biodiversitylibrary.org/page/5753959) page(s): p. 281 n° 1 Model n° 80
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Operculina complanata sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 112
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Image source: Cushman, J.A. 1921. Foraminifera of the Philippine and adjacent seas. Bull. U.S. Natl. Mus. 100(4).
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Leymerie A. (1846). Mémoire sur le terrain à Nummulites (épicrétacé) des Corbières et de la Montagne Noire. Mémoires de la Société géologique de France. 2 (1) 337-372, pls. 12-17., available online at (http://www.biodiversitylibrary.org/item/133679#page/361/) page(s): p. 359 pl. 13 fig. 11
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This species closely resembles its relative, Heterostegina. This individual was collected off Okinawa. Image courtesy of Maria Holzmann, University of Vienna. This image first appeared in J. Foram. Res. 33:277-284 and is used with permission.
