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Rotalina semimarginata (d'Orbigny, 1850)
Description Terquem, M. O. (1882). Les Foraminifères de l'Éocène des environs de Paris. Mémoires de la Société géologique de France, sér. 3, vol. II, mém. 3, 193 p. , available online at http://jubilotheque.upmc.fr/fonds-memsgf/GM_000017_003/document.pdf?name=GM_000017_003_pdf.pdfpage(s): p. 56 pl. 3 fig. 12-14; note: fig. 13 is the more accurate. ·
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