msrb-2008-166-167http://www.ipgg.sbras.ru/ru/Files/publications/ibc/msrb-2008-166-167.pdfmsrb-2008-166-167publ-pervye-nakhodki-ammonitov-acanthoscaphites-tridens-kner-2008-028684

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publ-pervye-nakhodki-ammonitov-acanthoscaphites-tridens-kner-2008-028684