| link
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From
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To
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Geolocation
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Author - title
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Year
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| details | Llanvirnian | Llandeilian | England(Cumberland) | Wadge,A.J. et al. A probable Didymograptus murchisoni zone fauna from the Lake District. | 1969 |
| details | Llandeilian | Spain | Cramer,F.H. et al. Iberian chitinozoans | 1978 |