Semilla Sandstone, a new member of the Mancos Shale in the southeastern part of the San Juan Basin, New Mexico
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Bulletin↗
Geology topics
William Aubrey Cobban
Publications and source records attributed to William Aubrey Cobban.
Stratigraphy and regional relationships of a reference section for the Juana Lopez Member, Mancos Shale, in the San Juan Basin, New Mexico
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Bulletin↗
The Late Cretaceous cephalopod Haresiceras Reeside and its possible origin
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Professional Paper↗
Multinodose scaphitid cephalopods from the lower part of the Pierre Shale and equivalent rocks in the conterminous United States
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Professional Paper↗
Studies of the Mowry shale (Cretaceous) and contemporary formations in the United States and Canada
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Professional Paper↗