Abstract
Se describen y figuran aquí varias unidades estratigráficas características del tránsito Ediacárico-Cámbrico entre Guadalupe y Castañar de Ibor, al norte del Geoparque de Villuercas-Ibores-Jara (Cáceres). Se detallan los afloramientos (i) de las formaciones de Castañar y Villarta (Grupo de Ibor, Ediacárico terminal y Terreneuviense), junto a su contenido en vendoténidos, sabellidítidos y arrecifes microbianos con Cloudina; y (ii) de la Formación de San Lorenzo (Terreneuviense) y su contenido paleoicnológico. Por último, se destaca el registro paleoicnológico de la Cuarcita Armoricana (Ordovícico Inferior), principalmente de Cruziana y Daedalus, que caracteriza algunos puntos de interés geológico (LIG) en el Geoparque.
Highlights
The Villuercas-Ibores-Jara UNESCO Global Geopark (Cáceres province, Spain) comprises some key outcrops to constrain the Ediacaran-Cambrian boundary interval, and the Lower Ordovician strata sealing them, in the Iberian Peninsula
Filamentous fossils from the Ibor Group are relatively abundant in this stop
A characteristic feature of this log is that relatively flat filamentous fossils are associated with elevated ridges of comparable dimensions, forming similar general trajectories, which raises the question if the two have the same origin but display different modes of preservation
Summary
The Villuercas-Ibores-Jara UNESCO Global Geopark (Cáceres province, Spain) comprises some key outcrops to constrain the Ediacaran-Cambrian boundary interval, and the Lower Ordovician strata sealing them, in the Iberian Peninsula. Figure 2.—Map showing location of Stops 1 (Ibor Group) and 2 (view of Appalachian relief).
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