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http://hdl.handle.net/2183/614 Conodont content and stratigraphy of the Llessui Formation from the south central Pyrenees
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García-López, S. and Bastida, F. (eds). Palaeozoic conodonts from Northern Spain: Eight International Conodont Symposium held in Europe. Madrid: Instituto Geológico y Minero de España, 2002, pp. 391-401
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Abstract
A synthetic stratigraphic succession of the Upper Silurian Llessui Formation is established according to partial sections and conodont sampling. The lower part of the formation is considered Ludlow, while the uppermost Přídolí conodont O. e. detortus Zone is recognised at the top. Above, the shales, with some limestones of the Aneto Formation, range from the Přídolí to the middle Lochkovian L. omoalpha-A. trigonicus Zone, where the limestones of the Rueda Formation begin. The carbonate facies of the Llessui Fm are similar to the Ockerkalk facies from the Northern Gondwana. The succession is compared with other Pyrenean sequences and related with some Mediterranean neighbouring areas.