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Impressions of the attachment of the soft body to the shell in late Cretaceous pachydiscid ammonites from the Western Interior of the United States

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By: Landman, Neil H.

Publication info: New York, NY, American Museum of Natural History, c1999

Holding Institution: American Museum of Natural History Library

Subjects: Ammonoidea Colorado Cretaceous Menuites oralensis Mollusks, Fossil Paleontology Pierre Shale South Dakota Wyoming