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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 | Early Givetian | Scotland(Ross/Cromarty) | Richardson,J.B. Spores from the Middle Old Red Sandstone of Cromarty, Scotland. | 1960 | |
| details | Early Mississippian | Canada(Nova Scotia) | Richardson,J.B. Spores from the Middle Old Red Sandstone of Cromarty, Scotland. | 1960 |