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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 252, Figs. 1-5: Carboniferous, England. 1-3, Top, side, and basal view, x 65; 4, longitudinal section (BMNH P35520), x 47; 5, horizontal section (BMNH P35519), x 47 (from Loeblich and Tappan, 1964, Treatise on Invertebrate Paleontology).
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Schlagintweit, F.; Rigaud, S.; Wilmsen, M. (2015). The benthic foraminifer Altamirella biscayana n. gen., n. sp. from the lower Cenomanian of Cantabria, N-Spain: A post-Palaeozoic fusulinan?. Cretaceous Research. 52: 1-8., available online at (https://doi.org/10.1016/j.cretres.2014.08.001) page(s): p. 4 figs. 4-5 (holotype fig. 4 F).
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Krainer, K.; Vachard, D.; Schaffhauser, M. (2019). Early Permian (Yakhtashian; Artinskian - Early Kungurian) foraminifers and microproblematica from the Carnic Alps. Abhandlungen der Geologischen Bundesanstalt. 73:1-247., available online at (https://opac.geologie.ac.at/wwwopacx/wwwopac.ashx?command=getcontent&server=images&value=Abh_0073.pdf) page(s): p. 58, Pl. 12, Figs. 13, 14 (holotype fig. 13).
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Ehrenberg, C.G. (1854). Mikrogeologie. Einundvierzig Tafeln mit über viertausend grossentheils colorirten Figuren, Gezeichnet vom Verfasser. [Atlas]. Leopold Voss, Leipzig., 40 pls., available online at (https://doi.org/10.5962/bhl.title.118752) page(s): p. 24 pl. 37 fig. 12-13
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Okimura, Y.; Ishii, K. I.; Nakazawa, K. (1975). Abadehella, a new genus of tetrataxid Foraminifera from the Late Permian. Memoirs of the Faculty of Science, Kyoto University. Series of geology and mineralogy. 41(1): 35-48., available online at (http://hdl.handle.net/2433/186600) page(s): p. 2 pl. 1 figs. 3 (holotype)-4, pl. 3 fig. 2 (apertural section). courtesy of Michael Hesemann https://foraminifera.eu
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Okimura, Y.; Ishii, K. I.; Nakazawa, K. (1975). Abadehella, a new genus of tetrataxid Foraminifera from the Late Permian. Memoirs of the Faculty of Science, Kyoto University. Series of geology and mineralogy. 41(1): 35-48., available online at (http://hdl.handle.net/2433/186600) page(s): p. 2 pl. 1 figs. 3 (holotype)-4, pl. 3 fig. 2 (apertural section).