Fossil Ecosystems of North America : A Guide to the Sites and their Extraordinary Biotas
Paul Selden
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Format: eBook (PDF)
The Ecphoras : Iconic Fossils of Eastern North America
Edward J. Petuch
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Format: eBook (PDF)
The Ecphoras : Iconic Fossils of Eastern North America
Edward J. Petuch
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Format: eBook (EPUB)