| 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 | Carboniferous | Permian | USSR(Urals) | Malakhov,A.A. et al. New information on the age of the Sakmara and Ulu-Tau South Urals Suites | 1965 |
| details | Carboniferous | England(Yorkshire) | Harris,T.M. The geology of the Yorkshire Jurassic flora. | 1953 |