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  1. Neue Beiträge zur Kenntnis der devonischen Fauna Argentiniens / von Ivor Thomas.
    By: Thomas, Ivor.
    Publication info: Marburg :[J.F. Starcke, Berlin,]1905.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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