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handle: 10261/30617 , 20.500.14352/49369
[ES] El estudio para conodontos de numerosos niveles de la “Caliza de Pelmatozoos” en secciones de los sinclinales del Cerrón del Hornillo y del Valle ha permitido identificar los taxones: Amorphognathus ordovicicus, A. aff. ordovicicus, Amorphognathus sp., Amorphognathus? sp., Drepanoistodus cf. suberectus, Drepanoistodus? sp., Hamarodus europaeus, Icriodella cf. superba, Istorinus erectus, Panderodus gracilis, Plectodina tenuis?, Sagittodontina robusta, Scabbardella altipes, Scabbardella sp A., Walliserodus amplissimus? y Walliserodus? sp. Esta asociación, que se adscribe a la Provincia Mediterránea de conodontos, es atribuida a la Zona de Amorphognahus ordovicicus, Kralodvoriense, por la presencia del taxón nominal. Dentro de esta provincia ha sido posible identificar la Biofacies de Sagittodontina-Scabbardella por la abundancia relativa de ambos taxones. Si bien existe una gran similitud entre esta fauna y las de edad equivalente reconocidas en el ámbito de dicha provincia, la presencia de Plectodina y Drepanoistodus sugieren que el área de estudio se encontraba emplazada en latitudes más bajas que el resto de la Península Ibérica, exceptuando la del Complejo Maláguide, y que este hecho favoreció el intercambio faunal con las provincias Británica y Báltica de conodontos.
[EN] Several limestone levels of the “Caliza de Pelmatozoos” were sampled for conodonts in sections of the Cerrón del Hornillo and Valle synclines. The conodont fauna includes: Amorphognathus ordovicicus, A. aff. ordovicicus, Amorphognathus sp., Amorphognathus? sp., Drepanoistodus cf. suberectus, Drepanoistodus? sp., Hamarodus europaeus, Icriodella cf. superba, Istorinus erectus, Panderodus gracilis, Plectodina tenuis?, Sagittodontina robusta, Scabbardella altipes, Scabbardella sp A., Walliserodus amplissimus? y Walliserodus? sp. This association is attributed to the Amorphognathus ordovicus Zone by the presence of the index species, and to the Sagittodontina-Scabbardella Biofacies of the Mediterranean Province of conodonts by the relative abundance of these two taxa. This fauna is close related to coeval associations from several localities of the Iberian Peninsula, except that of the Malaguide Complex, but the presence of Plectodina and Drepanoistodus suggest possible faunal exchange with Anglo-Baltic faunas.
Este trabajo es una contribución al proyecto PATRIORSI (CGL2006-07628/BTE) del Ministerio de Ciencia e Innovación, al proyecto IGCP 503 “Ordovician Palaeogeography and Palaeoclimatology” y Grupo UCM 910231.
27 páginas, 1 figura, 2 tablas, 2 láminas.
Peer reviewed
Conodontos, Taxonomía, Biofacies de Sagittodontina-Scabbardella, Provincia Mediterránea, Conodonts, Sagittodontina-Scabbardella biofacies, 2416 Paleontología, Kralodvorian, Paleontología, Sagittodontina-Scabbardella Biofacies, Mediterranean Province, 56:573.4, Kralodvoriense, Mediterranean province, Taxonomy
Conodontos, Taxonomía, Biofacies de Sagittodontina-Scabbardella, Provincia Mediterránea, Conodonts, Sagittodontina-Scabbardella biofacies, 2416 Paleontología, Kralodvorian, Paleontología, Sagittodontina-Scabbardella Biofacies, Mediterranean Province, 56:573.4, Kralodvoriense, Mediterranean province, Taxonomy
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