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  1. Die Stephanoceras-Verwandten in den Coronatenschichten von Norddeutschland / von Erich Mascke.
    By: Maske, Erich,
    Publication info: Alfeld :P. Dobler,[1906]
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Ammonoidea  Cephalopoda, Fossil  Germany, Northern  Mollusks, Fossil  Paloeontology  Stratigraphic  
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