| 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 | Middle Ordovician | Canada(Quebec) | Moczydlowska,M. Cambrian acritarchs from Upper Silesia, Poland: Biochronology and tectonic implications. | 1998 | |
| details | Middle Frasnian | Belgium | Vanguestaine,M. et al. Evolution of organic debris and palynomorph preservation in two late middle Frasnian sections, southern Dinant Synclinorium border, Belgium. | 1999 |