Kojumdgieva, E. & Strachimirov, B. (1960). Les fossiles de Bulgarie. VII Tortonien. <em>Academie des Sciences de Bulgarie, Sofia.</em> 7:1–317, 59 pls.[details]
original descriptionKojumdgieva, E. & Strachimirov, B. (1960). Les fossiles de Bulgarie. VII Tortonien. <em>Academie des Sciences de Bulgarie, Sofia.</em> 7:1–317, 59 pls.[details]
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