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.
Depressed rates of origination and extinction during the late Paleozoic ice age: A new state for the global marine ecosystem
Stanley,Steven M. et al.
Geology(2003),31(10):877
http://dx.doi.org/10.1130/G19654R.1

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