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Occurrence and significance of Marine Animal remains in American coal balls / by Sergius H. Mamay and Ellis L. Yochelson.

By: Mamay, Sergius H, 1920-2008.
Contributor(s): Yochelson, Ellis Leon, 1928-2006.
Material type: materialTypeLabelBookSeries: Geological Survey Professional Paper; 354-I.Publisher: Washington : United States Government Printing Office, 1962Description: P. 194-224, [10] h. de lam. --.Content type: Texto (visual) Media type: sin mediación Subject(s): Fósiles marinos
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