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| Marnes de Gan Stratigraphic range: Ypresian ~55–50 Ma | |
|---|---|
| Type | Formation |
| Lithology | |
| Primary | Marl |
| Location | |
| Country | France |
| Type section | |
| Named for | Gan |
The Marnes de Gan is a geologic formation in France. It preserves fossils dating back to the Paleogene period.