The Geological Society of America

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The Geological Society of America provides access to elements that are essential to the professional growth of earth scientists at all levels of expertise and from all sectors: academic, government, business, and industry.
Marine Cretaceous-Tertiary boundary section in southwestern South Dakota: Comment and Reply
Harries,Peter J. et al.
Geology(2002),30(10):954
http://dx.doi.org/10.1130/0091-7613(2002)030<0955:MCTBSI>2.0.CO;2

The Geological Society of America
The Geological Society of America
GeoScienceWorld
GeoScienceWorld