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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 229, Figs. 25-27: L. Carboniferous (M. Tournaisian), S. Urals. 25, 26, Edge and side views, x 53; 27, horizontal section showing chamber arrangement, dotted line indicating opposed chambers of the pairs, x 53 (from Chernysheva, 1941). courtesy of Michael Hesemann https://foraminifera.eu
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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 234, Figs. 4-5: L. Carboniferous (Tournaisian), USSR. Type species of Brunsiina Lipina. 4, Sagittal section of holotype, x 100; 5, axial section of paratype, x 100 (from Dain and Grozdilova, 1953).
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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 242, Fig. 10: L. Carboniferous (Visean), Yorkshire, England. Sagittal section of holotype, x 75 (from Strank, 1983).
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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 246, Figs. 10,11: U. Devonian (Fammenian), USSR. 10, Axial section showing lateral secondary chomatalike deposits, x 75; 11, sagittal section, x 75 (from Rauzer-Chernousova and Fursenko, 1959). courtesy of Michael Hesemann https://foraminifera.eu
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Lipina, O. A. (1955). ???????????? ??????????? ????? ? ??????? ????? ?????? ?????-????????? ??????? ? ????????? ?????? ???????? ????? - The foraminifera of the Tournaisian stage and the upper part of the Devonian of the Volga-Ural region and the western slope of the middle Urals. ????? ??? ?? ???? - Reports Geological Institute Academy of sciences USSR. 163(70): 1-96., available online at (https://books.google.pt/books/about?id=nulPDwAAQBAJ) page(s): p. 42 pl. 4 fig. 12-13