This is the second part of an article devoted to rare, or especially interesting ammonites found in the Lower cretaceous of the German-Dutch border region between Rheine, Bentheim, and Winterswijk. Excemples of ancylocerate and other heteromorphous ammonites from the Barremian of Hummeldorf and the Aptian of Alstätte are discussed: Ancyloceras and Prodeshayesites.

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Grondboor & Hamer

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Nederlandse Geologische Vereniging

E. Kemper. (1966). Beobachtungen an Unterkreideammoniten im deutsch-holländischen Grenzgebiet zwischen Rheine, Bentheim und Winterswijk teil 2. Grondboor & Hamer, 20(6), 256–258.