rgg-2010-06-684http://www.ipgg.sbras.ru/ru/Files/publications/ibc/rgg-2010-06-684.pdfrgg-2010-06-684publ-evolution-of-stromatoporoidea-in-the-ordovician-silurian-047389

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publ-evolution-of-stromatoporoidea-in-the-ordovician-silurian-047389