Semilla sandstone, a new member of the Mancos Shale in the southeastern part of the San Juan Basin, New Mexico : definition, description, and paleontology of a new stratigraphic unit / by Carle H. Dane, Erle G. Kauffman, and William A Cobban.
- Physical Description: 1 online resource (iii, 21 pages) : illustrations.
- Publisher: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1968.
- Distributor: Washington : United States Government Printing Office
|General Note:|| Title from title screen (viewed September 15, 2014).
|Bibliography, etc. Note:|| Includes bibliographical references (pages 19-21).
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Shale > New Mexico.
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- Geological Survey bulletin ; 1254-F
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- Geological Survey bulletin ; 1254-F.
- Contributions to stratigraphy.