
handle: 10261/29608
[ES] Se estudian 22 horizontes fosilíferos procedentes de cinco secciones estratigráficas localizadas en los materiales silúricos del Sinclinal del Guadarranque (Zona Centroibérica). La presencia en los mismos de graptolitos, junto a algunos conodontos, reviste un gran interés bioestratigráfico, permitiendo la datación y correlación de gran parte de la sucesión. Esta comienza con la Formación Guadarranquejo, en la que se encuentran representadas las Zonas Turriculatus a Crenulata del TelycLriense, existiendo un laguna Rhuddaniense-Aeroniense en la base de la sucesión. A continuación, la Formación Guadarranque corresponde esencialmente al Sheinwoodiense, evidenciado por las Zonas Linnarssoni y Riccartonensis; mientras que el limite con el Ludlow se detecta en las «Areniscas de Las Cabezuelas», en cuya parte superior ha podido reconocerse la Zona Nilssoní del Gorstiense. La presencia de materiales silúrico-devónicos más modernos se descarta provisionalmente en el núcleo del sinclinal.
[EN] Twenty two fossiliferous levels from the five stratigraphic sections in Silurian rocks of the Guadarranque Syncline (Central-Iberian Zone) are studied. The presence of graptolites together with conodonts is very significant and of great biostratigraphic value in order to date and correlate a big part of the succession. The lowest beds are the Guadarranquejo Formation and represent the Turriculatus and Crenulata Zones from the Telychian. They are preceded by a gap representing Rhuddanian-Aeronian.
24 páginas, 4 figuras, 2 láminas.
Peer reviewed
Zona Centroibérica, Central Iberian Zone, Silúrico, Bioestratigrafía, Biostratigraphy, Hesperian Massif, Macizo Hespérico, Silurian
Zona Centroibérica, Central Iberian Zone, Silúrico, Bioestratigrafía, Biostratigraphy, Hesperian Massif, Macizo Hespérico, Silurian
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