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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 281, figs. 3-6: L. Permian, Rathuri Limestone, N. Thailand. 3, Axial section of holotype, x 20; 4, subaxial section, x 20; 5, tangential section of paratype with spirotheca much twisted in outer volutions, x 40; 6, unoriented sagittal section of paratype, x 40 (from Toriyama, 1982).
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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 278, Figs. 5-9: L. Permian (Sakmarian), Wolfcampian, McCloud Limestone, Shasta County, California, USA. 5, Part of tangential section showing cuniculi, x 20; 6, 7, axial sections of topotypes, x 10; 8, 9, sagittal sections of topotypes, x 10 (from Skinner and Wilde, 1965).
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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 277, Fig. 5: L. Permian (Artinskian), Primorye. Axial section of lectotype, x 12 (from Rozovskaya, 1975). 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 281, figs. 1-2: L. Permian (Asselian), S. Fergana. Type species of Pseudofusulinoides Bensh. 1, Subaxial section of holotype, x 15; 2, axial section of paratype, x 15 (from Bensh, 1972).
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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 287, Figs. 4, 7: L. Permian (Asselian), USSR. 4, 7, Darvaz, axial sections, x 10 (from Leven and Shcherbovich, 1978). courtesy of Michael Hesemann https://foraminifera.eu
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Wilde, G. L. (2006). Pennsylvanian-Permian Fusilinaceans of the Big Hatchet Mountains, New Mexico. New Mexico Museum of Natural History and Science, Bulletin. 38: 1-331., available online at (https://books.google.pt/books?id=fLLECQAAQBAJ) page(s): p. 80, pl. 90, figs. 8-16 (holotype fig. 8).
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Wilde, G. L. (2006). Pennsylvanian-Permian Fusilinaceans of the Big Hatchet Mountains, New Mexico. New Mexico Museum of Natural History and Science, Bulletin. 38: 1-331., available online at (https://books.google.pt/books?id=fLLECQAAQBAJ) page(s): p. 86, pl. 102, fig. 1-5 (holotype pl. 102 fig. 1).
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Dzhenchuraeva, A. V.; Getman, O. F. (2007). Stratigraphy and foraminifers from the uppermost Carboniferous (Kasimovian-Gzhelian) of the Jamantoo and Baibichetoo ranges (middle Tien-Shan, Kyrgyzstan). The Journal of Foraminiferal Research. 37(1): 46-68., available online at (https://doi.org/10.2113/gsjfr.37.1.46) page(s): p. 62, pl. 3, fig. 17 (holotype).
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Davydov, V. I.; Arefifard, S. (2007). Permian fusulinid fauna of Peri-Gondwanan affinity from the Kalmard Region, East-central Iran and its significance for tectonics and paleogeography. Palaeontologia Electronica. 10: 1-40., available online at (https://palaeo-electronica.org/2007_2/00124/index.html) page(s): p. 21, Figure 7.6-7.9 (holotype fig. 7.6).
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Davydov, V. I.; Arefifard, S. (2007). Permian fusulinid fauna of Peri-Gondwanan affinity from the Kalmard Region, East-central Iran and its significance for tectonics and paleogeography. Palaeontologia Electronica. 10: 1-40., available online at (https://palaeo-electronica.org/2007_2/00124/index.html) page(s): p. 27, Figure 8.9-8.10 (holotype fig. 8.10).
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Shi, Y. K.; Yang, X. N.; Jin, X. C. (2005). Restudy of the “Rugososchwagerina” of the Middle Permian Shazipo Formation from Xiaoxinzhai of Gengma, western Yunnan. Acta Palaeontologica Sinica. 44: 535–544. page(s): p. 538 (Chinese), p. 542 (English), Pl. 1,figs. 1 ,3 ; Pl. 2, figs. 1 ,2 (holotype pl. 1 fig. 3, pl. 2 fig. 2).
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Huang, Z. X.; Zeng, X. L. (1984). The early Early Permian (Longlinian Stage) fusulinid fauna from Longlin, Guangxi. Earth Sci.-Jour., Wuhan Coll. Geol. 26(3): 11-24. page(s): p. 15 pl. 3 figs. 1-2 (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 276, Figs. 1-3: U. Permian, Armenia. Type species of Orientoschwagerina A. D. Miklukho-Maklay. 1, Axial section, x 10; 2, 3, axial section, center enlarged, x 25, and entire specimen, x 10 (from Shcherbovich, 1964). courtesy of Michael Hesemann https://foraminifera.eu
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Miklukho-Maklay, A. D. (1955). ????? ?????? ? ???????? ??????????? ????? ??????? ???? - New data on the Permian fusulinids from the southern regions of the USSR. ??????? ???????? ???? ???? - Proceedings of the USSR Academy of Sciences. 105(3): 573-576. page(s): p. 574 figs. 1 a-b (holotype fig. 1 a).
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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 278, Figs. 1-4: U. Carboniferous (Stephanian), Virgil Series, Ervine Creek Shale Member, Deer Creek Limestone, Osage County, Oklahoma, USA. 1, 2, Axial section of lectotype, x 10, and part enlarged, x 20; 3, 4, sagittal sections, x 10 (1, 3, 4, from Thompson, 1948; 2, from Thompson, 1942). courtesy of Michael Hesemann https://foraminifera.eu
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Skinner, J. W.; Wilde, G. L. (1965). Permian biostratigraphy and fusulinid faunas of the Shasta Lake area, northern California. The University of Kansas Paleontological Contributions, Protozoa. 6: 1-98., available online at (http://hdl.handle.net/1808/3813) page(s): p. 73 Plate 58, figures 4-8
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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 276, Figs. 4-6: U. Permian, U. Hoshan Series, Chungkuh Limestone, Kwangsi, China. 4, Sagittal section, x 10 (from Hsu, 1942); 5, 6, axial section of lectotype, entire specimen, x 10, and central part enlarged, x 25 (from Shcherbovich, 1964). courtesy of Michael Hesemann https://foraminifera.eu
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Zhuang, S. (1989). A study on stalactotheca in spirotheca of Fusulinids and some new genera and species with stalactotheca. ??????? - Acta Micropalaeontologica Sinica. 6(4): 357-371. page(s): p. 363 (Chinese), p. 369 (English), pl. 3, figs 5, 7-10, pl. 4, figs. 1-2 (holotype fig. 7a).
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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 288, Fig. 1: U. Carboniferous (Kasimovian), S. Urals. Axial section of holotype, x 9 (from Rozovskaya, 1949). courtesy of Michael Hesemann https://foraminifera.eu
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Zhuang, S. (1989). A study on stalactotheca in spirotheca of Fusulinids and some new genera and species with stalactotheca. ??????? - Acta Micropalaeontologica Sinica. 6(4): 357-371. page(s): p. 360 (Chinese), p. 367 (English), pl. 1, figs. 4-9, pl. 2, figs. 1-4 (holotype pl. 1, fig. 4a).
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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 283, Figs. 5-6: M. Permian (Kungurian), Hatien region, South Viet Nam. Type species of Codonoschwagerina Viên. 5, axial section, length 10 mm; 6, axial section, length 16 mm (from Viên, 1959).
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Skinner, J. W.; Wilde, G. L. (1965). Permian biostratigraphy and fusulinid faunas of the Shasta Lake area, northern California. The University of Kansas Paleontological Contributions, Protozoa. 6: 1-98., available online at (http://hdl.handle.net/1808/3813) page(s): p. 84, pl. 35, figs. 13–18
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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 275, Figs. 6-8: L. Permian (Sakmarian), Wolfcampian, Horquilla Limestone, Hidalgo County, New Mexico, USA. 6, Sagittal section of paratype, x 20; 7, 8, axial section of holotype, central part, x 40, and entire specimen, x 20 (from Skinner and Wilde, 1965).
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Möller, V. von. (1878). Die Spiral-gewundenen Foraminiferen des russischen Kohlenkalks. Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. ser. 7 vol. 25 n° 9., available online at (http://www.biodiversitylibrary.org/item/177334#page/737/) page(s): p.71 pl. 9 fig. 1