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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 214, Figs. 2-4: N. Kharaulakh; 2, U. Visean, horizontal section, x 100; 3, U. Tournaisian, axial section, x 70; 4, M. Visean, axial section, x 100 (from Bogush and Yuferev, 1966). courtesy of Michael Hesemann https://foraminifera.eu
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Malakhova, N. P. (1973). ? ???????? ? ????????????????? ????????? ??????????? ????? ?????? ????? - About the age and stratigraphic position of the Gusikhinsky Formation of the Southern Urals. ??. ??? ??? ?? ????. 82: 127-185., available online at (http://books.google.com/books/about?id=AKN6DwAAQBAJ) page(s): p. 162 pl. 11 fig. 6(Holotype)-12
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Sosipatrova, G. P. (1962). ???????????? ?? ?????????????????? ????????? ??????? - Foraminifers from the Upper Paleozoic deposits of Taimyr. ??. ??. ????? ?? ????????????? ? ???????????? - Coll. of articles in paleontology and stratigraphy NINGA. 30: 35-72. page(s): p. 64, pl. 5, figs. 19(Holotype)-21
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Pirlet, H.; Conil, R. (1974). L'évolution des Archaediscidae viséens. Bulletin de la société belge de géologie de paléontologie et d'hydrologie. 82[1973]: 241-300., available online at (http://biblio.naturalsciences.be/rbins-publications/bulletin-de-la-societe-belge-de-geologie/082%20-%201973/bsbg_82_1973_p241-299.pdf) page(s): p. 283 pl. 1 fig. 15
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Malakhova, N. P. (1973). ? ???????? ? ????????????????? ????????? ??????????? ????? ?????? ????? - About the age and stratigraphic position of the Gusikhinsky Formation of the Southern Urals. ??. ??? ??? ?? ????. 82: 127-185., available online at (http://books.google.com/books/about?id=AKN6DwAAQBAJ) page(s): p. 159 pl. 9 fig. 1 (Holotype)-3
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Vdovenko, M. V.; Rauzer-Chernousova, D. M.; Reitlinger, E. A.; Sabirov, A. A. (1993). ?????????? ?? ??????????? ?????? ??????????? ???????? (?? ??????????? ???????????? ? ???????? ????????????? ??????????) - Reference-Book on the Systematics of Paleozoic Smaller Foraminifers (with the exception of endotyroids and Permian multi-chamber lagenoids). Nauka. 1-128., available online at (https://books.google.com/books?id=IBRq8aK5H3UC) page(s): p. 70 pl. 12 fig. 17
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Conil, R.; Lees, A. (1974). Les transgressions viséennes dans l'ouest de l'Irlande. Annales de la Société Géologique de Belgique. 97(2): 463-484., available online at (https://popups.uliege.be/0037-9395/index.php?id=5640) page(s): p. 267 pl. 1 fig. 6(Holotype)-7
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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 218, Figs. 1-4: L. Carboniferous (Visean). 1-3, Northumberland, England, side, edge, and basal view of neotype (BMNH P40403), x 84 (from Loeblich and Tappan, 1964, Treatise on lnvertebrate Paleontology); 4, U. Visean, France, axial section, x 89 (from Mamet, 1969).
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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 231, Figs. 17-18: U. Devonian (Tournaisian), USSR. 17, Axial section, x 81 (from Grozdilova and Lebedeva, 1954); 18, equatorial section, x 70 (from Lipina, 1955). 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 237, Figs. 8-9: L. Carboniferous (Tournaisian), USSR. 8, Ural Mountains, longitudinal section, x 66 (from Rauzer-Chemousova and Fursenko, 1959); 9, central Karatau,longitudinal section, x 60 (from Bogush and Yuferev, 1962). courtesy of Michael Hesemann https://foraminifera.eu
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Mamet, B.; Pinard, S. (1992). Note sur la taxonomie des petits foraminifères du Paléozoïque supérieur - A taxonomic note on upper Paleozoic smaller foraminifera. Bulletin de la Société belge de Géologie. 99[1990]: 373-398., available online at (http://biblio.naturalsciences.be/rbins-publications/bulletin-de-la-societe-belge-de-geologie/099%20-%201990/bsbg_nr99_1990_373-397.pdf) page(s): p. 381, pl. 1, fig. 16 (holotype).
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Source: Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at (https://books.google.pt/books?id=n_BqCQAAQBAJ) page(s): pl. 311 fig. 14-16; note: Pseudovidalina ornata Sosnina. U. Permian (Chandalazsk Horizon), S. Primorye, USSR. 14, Equatorial section, x 70; 15, 16, axial section of holotype, x 70 and x 100, respectively (from Sosnina, 1978)
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Cózar, P.; Mamet, B. L. (2001). Planohowchinia (Lasiodiscidae, Foraminiferida), a new Late Viséan genus, southwestern Spain. The Journal of Foraminiferal Research. 31(3): 228-232., available online at (https://doi.org/10.2113/31.3.228) page(s): p. 229, Plate 1, figs. 1–11 (holotype fig. 1).
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Vachard, D. (1980). Téthys et Gondwana au Paléozoïque supérieur ; les données afghanes: biostratigraphie, micropaléontologie, paléogéographie. Documents et Travaux IGAL, Institut Géologique Albert de Lapparent. 2(1-2): 1-463. page(s): p. 86, pl. 15, figs. 1-3 (holotype pl. 15 fig. 2).
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Pinard, S.; Mamet, B. (1998). Taxonomie des petits foraminifères du Carbonifère supérieur-Permien inférieur du bassin de Sverdrup, Arctique canadien. Palaeontographica Canadiana. 15: 1-253. page(s): Textfig. 6 nº 5-6
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Zheng , H. (1986). ??????????????? - The smaller foraminifers faunas in Qixia stage (Early Permian) of Daxiakou, Xingshan County, Hubei Province. [in Chinese]. Earth Science, Journal of Wuhan College of Geology. 11: 489–497. page(s): p. 493, pl. 6, fig. 9 a, b (holotype fig. 9 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 232, Figs. 10-14: U. Carboniferous (Namurian), Czechoslovakia. Type species of Cepekia Vasicek and Ruzicka. 10, 12, Sagittal and axial sections, x 81; 11, side view, x 81; 13, 14, side and face views, x 81 (from Vasicek and Ruzicka, 1957).
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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 214, Fig. 10: Devonian (Fammenian), Saratov Province. Section of holotype, x 100 (from E. V. Bykova, 1955). courtesy of Michael Hesemann https://foraminifera.eu
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Dain, L. G.; Grozdilova, L. (1953). ?????????? ???????????? ????. ???????????? ? ??????????? - Fossil foraminifera of the USSR. Tournayellidae and Archaediscidae. ????? ?????? - Proceedings of the Oil Research Geological Institut (VNIGRI). 74: 1-115., available online at (https://books.google.pt/books?id=4r85o5vYPjMC) page(s): p. 32 pl. 2 fig. 8 (holotype), 9-17
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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 217, Figs. 16-18: M. Carboniferous (Bashkirian), Donbas. 16. Tangential section x 260: 17. horizontal section of holotype x 260, 18. axial section x 260 (from Reytlinger,1956). courtesy of Michael Hesemann https://foraminifera.eu
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Orlova, I. N. (1955). Novyy rod semeystva Archaediscidae E. Tchern. [New genus of the family Archaediscidae E. Tchern.]. Doklady Akademii Nauk SSSR. 102: 621-622. page(s): p. 621-622 tf. 1 a(Holotype)-c
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Reichel, M. (1946). Sur quelques foraminifères nouveaux du Permien méditerranéen. Eclogae Geologicae Helvetiae. 38(2)[1945]: 524-560., available online at (http://www.e-periodica.ch/digbib/view?pid=egh-001:1945:38#558) page(s): p. 529 tf. 1-2
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Reichel, M. (1946). Sur quelques foraminifères nouveaux du Permien méditerranéen. Eclogae Geologicae Helvetiae. 38(2)[1945]: 524-560., available online at (http://www.e-periodica.ch/digbib/view?pid=egh-001:1945:38#558) page(s): p. 529 tf. 12
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Reichel, M. (1946). Sur quelques foraminifères nouveaux du Permien méditerranéen. Eclogae Geologicae Helvetiae. 38(2)[1945]: 524-560., available online at (http://www.e-periodica.ch/digbib/view?pid=egh-001:1945:38#558) page(s): p. 529 pl. 19 fig. 1-2