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Bridgerian  

Definition

  • The Bridgerian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 50,300,000 to 46,200,000 years BP lasting 4.1 million years. The Bridgerian is preceded by the Wasatchian and followed by the Uintan NALMA stages. (Adapted from: https://en.wikipedia.org/wiki/Bridgerian_North_American_Stage)

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http://data.loterre.fr/ark:/67375/QX8-G1FJVM2R-3

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