Sur la presence d'un riche microplancton siluro-devonien a Acritarches,spores et Chitinozoaires au sommet des schistes et quartzites de Plougastel (Rade de Brest-Finistere); son interet stratigraphique |
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| Authors: | Jean Deunff Jean-Jacques Chateauneuf |
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| Abstract: | The upper part of the “Schistes et quartzites de Plougastel” Formation reveals a rich assemblage of microplancton (spores, Acritarchs and Chitinozoans) of lower Lochkovian age. Preliminary studies show that this Formation was beginning within the silurian. |
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