Miospores in middle-upper Frasnian to Famennian sediments partly dated by conodonts (Boulonnais,France) |
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| Authors: | Stanislas Loboziak Maurice Streel |
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| Institution: | 1. Paléobotanique, Université des Sciences et Techniques de Lille, Villeneuve d''Ascq France;2. Paléobotanique et Paléopalynologie, Université de Liège, Liége Belgium |
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| Abstract: | The middle-upper part of the Formation de Beaulieu exposed in the new railroad trench at Caffiers-Ferques and the Formation de Ferques exposed in the Tartinskal quarries contain well-preserved miospore assemblages. They are here restudied in comparison with new conodont data ranging from the middle asymmeyricus to the Ancyrognathus triangularis Zone. The conodonts allow precise correlations with the type Frasnian area as well as with the Russian Platform and Timan-Pechora provinces. The miospore assemblages of the Formation d'Hydrequent are also considered and their age discussed in term of the Frasnian/Famennian boundary.In the systematic part, two new combinations are proposed: Ancyrospora lysii (Taugourdeau-Lantz, 1960) nov. comb., and Pustulatisporites rugulatus (Taugourdeau-Lantz, 1967) nov. comb. |
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