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Title

Descubrimiento de graptolitos arenigienses en la escama de Rioseco (zona Cantábrica, N. de España)

Other TitlesDiscovery of arenig graptolites in the Rioseco Thrust-Sheet (Cantabrian Zone , N. of Spain)
AuthorsGutiérrez-Marco, J. C. ; Rodríguez, L.
KeywordsOrdovician
Arening
Graptolites
Cantabrian zone
Spain
Ordovícico
Arenig
Graptolitos
Zona Cantábrica
España
Issue Date1987
PublisherEdiciós do Castro
CitationCuadernos do Laboratorio Xeolóxico de Laxe 11: 209-220 (1987)
Abstract[EN] Graptolites have been collected for the first time from the «transitional beds» overlying the Barrios Formation (Armorican Quartzite) in a single locality of eastern Asturias (N. Spain), within the Cantabrian zone of the Hesperian Massif (fig. 1). The studied material pertains to a dichograptid species with singlestiped rhabdosome and distinctive prothecal folds (fig. 2). It has been identified and described as Azygograptus undalatus CHEN & XIA, constituting thus the first report of this species outside China.
[ES] En este trabajo se da a conocer el hallazgo de Azygograptus undalatus CHEN y XIA en un tramo pelítico-arenoso situado por encima de la Cuarcita de Barrios s.str. dentro de la escama de Rioseco, que se equipara convencionalmente a la «serie de transición» de otras localidades asturianas. La especie mencionada permite atribuir al Arenig estos niveles, siendo la primera vez que se registra su presencia fuera de China.
Description12 páginas, 2 figuras.
Publisher version (URL)http://www.iux.es/index.php?page=15&arts=18
URIhttp://hdl.handle.net/10261/29588
ISBN84-7492-350-6
Appears in Collections:(IGE) Libros y partes de libros
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