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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 | Namurian A | Celtic Sea | Higgs,K.T. Palynological evidence for Carboniferous strata in two wells drilled in the Celtic Sea area | 1983 | |
| details | Late Mississippian | Arizona | Billingsley,G.H. et al. Pre-Supai buried valleys. (In: The Supai Group of Grand Canyon. E.D.McKee) | 1982 |