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  1. Monographiae Ammoniteorum et Goniatiteorum specimen / auctore Guilielmo de Haan.
    By: Haan, W. de
    Publication info: Lugduni Batavorum :H.W. Hazenberg,1825.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    Subjects: Ammonites  Ammonoidea  Goniatites  Goniatitidae  
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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