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Author - title
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Year
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| details | Chattian | N.Ireland(Tyrone) | Wilkinson,G.C. et al. The geology and palynology of the Oligocene Lough Neagh Clays, Northern Ireland. | 1980 | |
| details | Chattian | Wales | Wilkinson,G.C. et al. The geology and palynology of the Oligocene Lough Neagh Clays, Northern Ireland. | 1980 | |
| details | Chattian | England(Devonshire) | Wilkinson,G.C. et al. The geology and palynology of the Oligocene Lough Neagh Clays, Northern Ireland. | 1980 |