| 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 | Namurian | Westphalian C | France(Pas-de-Calais) | Carette,J. et al. Spores of the Bruay Stratum in the western part of the Coal Basin of the North and of Pas-de-Calais. | 1961 |
| original | Late Westphalian C | Belgium | Pi©rart,P. Palynology and stratigraphy of the Neeroeteren Zone, (Upper Westphalian C), in the Belgian Kempen. | 1958 | |
| details | Namurian | Westphalian | Belgium | Pi©rart,P. Utilization of megaspores in Coal stratigraphy. | 1958 |