Ammonites and some characteristic bivalves from the Upper Cretaceous Frontier Formation, Natrona County, Wyoming / by William A. Cobban.
| Uniform Title: | Evolution of sedimentary basins--Powder River Basin ;
ch. B. U.S. Geological Survey bulletin ; 1917-B. |
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| Corporate Author: | |
| Language: | English |
| Published: |
[Reston, Va.] :
Department of the Interior, U.S. Geological Survey,
1990.
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| Series: | Evolution of sedimentary basins--Powder River Basin ;
ch. B. U.S. Geological Survey bulletin ; 1917-B. |
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| Online Access: | |
| Physical Description: | 1 online resource (iv, 13 pages, 11 pages of plates) : illustrations, maps. |
| Variant Title: |
Ammonites and bivalves from Frontier Formation, Wyoming |
| Format: | Government Document Electronic eBook |