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Fornasini, C. (1902). Intorno ad alcune specie di «Polymorphina» istituite da d'Orbigny nel 1826. Rivista Italiana di Paleontologia. 8(1): 11-13., available online at (http://www.biodiversitylibrary.org/item/50736#page/25/) page(s): p. 12 pl. 1 fig. 8
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Fornasini, C. (1902). Intorno ad alcune specie di «Polymorphina» istituite da d'Orbigny nel 1826. Rivista Italiana di Paleontologia. 8(1): 11-13., available online at (http://www.biodiversitylibrary.org/item/50736#page/25/) page(s): p. 12 pl. 1 fig. 5
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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 457, Figs. 13-18: U. Triassic (Rhaetian), Shublik Formation, N. Alaska, USA. 13-15, Apertural, side, and basal views of megalospheric paratype, x 95; 16-18, apertural, side, and basal views of microspheric holotype, x 95 (from Tappan, 1951).
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Orbigny, A. D. d'. (1839). Voyage dans l'Amérique Méridionale. Foraminifères. t. 5 pt. 5: 1-86., available online at (https://www.biodiversitylibrary.org/page/46823366) page(s): p. 20 pl. 5 fig. 7-8
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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 456, Figs. 30-32: U. Cretaceous (Senonian), France. Opposite sides and edge view, x 87 (Figs. 27-32 from Loeblich and Tappan, 1964).
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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 469, Figs. 11-13: Holocene, E. Gulf of Mexico. Opposite sides and edge view of holotype, x 64 (from Loeblich and Tappan, 1963).
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Fornasini, C. (1901). Intorno a la nomenclatura di alcuni nodosaridi neogenici italiani. Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna. 5(9) [1901-1902]: 45-76., available online at (http://www.biodiversitylibrary.org/item/120183#page/79/) page(s): p. 70 tf. 22
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Gawor-Biedowa, E. (1987). New benthic foraminifers from the Late Cretaceous of Poland. Acta Palaeontologica Polonica. 32 (1-2): 49-71., available online at (https://www.app.pan.pl/archive/published/app32/app32-049.pdf) page(s): p. 60, pl. 23: 7; pl. 24: 4; pl. 26: 5 (holotype pl. 24 fig. 4).
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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 469, Figs. 6-7: U. Cretaceous (U. Campanian), France. Face and side views, x 50 (from Pérébaskine, 1946).
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Gawor-Biedowa, E. (1987). New benthic foraminifers from the Late Cretaceous of Poland. Acta Palaeontologica Polonica. 32 (1-2): 49-71., available online at (https://www.app.pan.pl/archive/published/app32/app32-049.pdf) page(s): p. 61, pl. 27: 3a, b (holotype).
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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 459, Figs. 20-22: U. Jurassic (Malm a), northeast of Reichenbach, Württemberg, Germany. Topotype specimens attached to shell fragments and showing variation in growth, x 19.
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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 444, Figs. 10-13: M. Paleocene (Ynezian), Anita Formation, Santa Barbara County, California, USA. 10, 11, Side view of paratypes, x 90; 12, 13, side and top views of holotype, x 100 (from Akpati, 1966).
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Schwager, C. (1866). Fossile Foraminiferen von Kar Nikobar. Reise der Österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair. Geologischer Theil (Zweite Abtheilung, Paläontologische Mittheilungen) 2(2): 187-268., available online at (http://www.mdz-nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:bvb:12-bsb10226528-7) page(s): p. 237 pl. 6 fig. 78 Credit: Bayerische Staatsbibliothek München.
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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 459, Fig. 24: L. Cretaceous (Albian), Gault, England. Specimen broken free of the attachment, x 70.
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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 461, Fig. 6: U. Jurassic (Oxfordian), Germany. Side view of holotype, x 44 (redrawn from Paalzow, 1932).
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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 461, Figs. 9-10: 9, L. Cretaceous (Albian), Duck Creek Formation, Horseshoe Bend of Red River, Love County, Oklahoma, USA; 10, U. Cretaceous (Cenomanian), Grayson Formation, Denton County, Texas. 9, Side view of holotype, x 75; 10, hypotype, x 75 (9, from Loeblich and Tappan, 1964).
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Gawor-Biedowa, E. (1987). New benthic foraminifers from the Late Cretaceous of Poland. Acta Palaeontologica Polonica. 32 (1-2): 49-71., available online at (https://www.app.pan.pl/archive/published/app32/app32-049.pdf) page(s): p. 62, pl. 27: 4a, b (holotype).
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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 456, Figs. 16-19: U. Cretaceous (Maastrichtian), Siberia, Russia. Opposite sides, base, and edge view, x 72 (from Dain, in N. K. Bykova et al., 1958).
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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 456, Figs. 12-15: L. Cretaceous (Valanginian), Germany. Opposite sides, apertural and basal views, x 156 (from Loeblich and Tappan, 1964).
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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 468, Figs. 17-18: U. Triassic (Camian), Yunnan Province, China. 17, Side view of holotype, x 60; 18, side view of paratype, x 60 (from Hu, in He and Hu, 1977).
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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 440, Figs. 19-20: Pliocene, Japan. Top and side views of holotype, x 43 .