Treatise on invertebrate paleontology. Part L: Mollusca 4, volume 4: Cretaceous ammonoidea

By Wright, Claud William. Boulder, CO|Lawrence, KS Geological Society of America|University of Kansas 1996 . xx,362 p. , Prepared under sponsorship of the Geological Society of America, Paleontological Society, Society of Economic Paleontologists and Mineralogists, Palaeontographical Society, Palaeontological Association

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Turonian and Coniacian Scaphitidae from England and North-Western Germany

By Kaplan, Ulrich. Hannover Bundesanstalt für Geowissenschaften und Rohstoffe 1987 . pp. 5-39 978-3-510-96393-5

Place Hold on Turonian and Coniacian Scaphitidae from England and North-Western Germany

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Treatise on invertebrate paleontology. Part L: Mollusca 4, volume 4: Cretaceous ammonoidea

Turonian and Coniacian Scaphitidae from England and North-Western Germany