| 词条 | Duchesnean |
| 释义 |
The Duchesnean North American Stage on the geologic timescale is a North American Land Mammal Age (NALMA), with an age from 42 to 38 million years BP, representing {{Mya|42-38|million years}}.[1] It falls within the Eocene epoch. The Duchesnean is preceded by the Uintan and followed by the Chadronian NALMA. The Duchesnean falls within the Bartonian age of the geologic timescale. References1. ^Paleobiology Database, Duchesnean {{Paleogene Footer}} 4 : Duchesnean|Eocene life|Bartonian|Eocene animals of North America |
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