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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 240, Figs. 5-7: L. Carboniferous (Visean). 5, Namur Basin, Belgium; 6, 7, Ural Mountains. 5, Longitudinal section, x 75; 6, 7, longitudinal sections, x 70 (from Lipina, 1970). 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 240, Figs. 5-7: L. Carboniferous (Visean). 5, Namur Basin, Belgium; 6, 7, Ural Mountains. 5, Longitudinal section, x 75; 6, 7, longitudinal sections, x 70 (from Lipina, 1970). courtesy of Michael Hesemann https://foraminifera.eu
