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Distribution of the middle ordovician Copenhagen formation and its Trilobites in Nevada / by Reuben James Ross and Frederick C. Shaw.

By: Ross, Reuben James, 1918-2005.
Contributor(s): Shaw, Frederick C.
Material type: materialTypeLabelBookSeries: Geological Survey Professional Paper; 749.Publisher: Washington : United States Government Printing Office, 1972Description: 33 p., [8] h. de lam. --.Content type: Texto (visual) Media type: sin mediación Subject(s): Artrópodos fósiles | Nevada | Trilobites
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