Some silicified Middle Ordovician brachiopods from Kentucky,
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| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington,
U.S. Govt. Print. Off.,
1967.
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| Series: | Contributions to the Ordovician paleontology of Kentucky.
Geological Survey professional paper ; 583-A. |
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