The late Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis (DeKay) in the western interior of the United States,
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| Format: | Livre |
| Langue: | English |
| Publié: |
Washington,
U.S. Govt. Print. Off.,
1969.
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| Collection: | Geological Survey professional paper ;
619. |
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