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Palæontology, invertebrate - Woods, Henry, 1868 -1952 (The University press, 1909)

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Palaozoologie : Entwurf einer systematischen Darstellung der Fauna der Vorwelt - Giebel, C. (Christoph), 1820 -1881 (Nulandt'sche buchandlung (L. Garcke), 1846)

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