SEDIS - Thesaurus
Wealden  | |
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| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Lower Cretaceous | |
| .....Wealden | |
| SN | Europe. Above Purbeckian, below Gault. |
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