Taxonomía y bioestratigrafía de conodontos silúricos en el pliegue acostado del Courel (Lugo, España)
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2012
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Instituto Geológico y Minero
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Abstract
En este trabajo se describen, ilustran y analizan desde un punto de vista taxonómico y bioestratigráfico las asociaciones de conodontos registradas en materiales del Silúrico en el Sinclinal del Courel, provincia de Lugo, España. Las formas identificadas corresponden a Dapsilodus obliquicostatus (Branson y Mehl, 1933), Oulodus cf. siluricus (Branson y Mehl, 1933), Kockelella cf. variabilis (Walliser,
1957), “Ozarkodina” bohemica (Walliser, 1964), “Ozarkodina” sagitta sagitta (Walliser, 1964), Wurmiella excavata excavata (Branson y Mehl, 1933), Walliserodus sp., Kockelella? sp. y Ozarkodina? sp. A partir de los resultados obtenidos se atribuyen los niveles investigados al intervalo comprendido entre la parte superior de la Zona de “O”. sagitta sagitta y la parte inferior de la Zona de K. variabilis, cuyo rango se extiende desde el Wenlock superior (Homeriense) hasta el Ludlow inferior (Gorstiense).
Conodont assemblages registered in materials from the Silurian Courel syncline, province of Lugo (Spain), are described, illustrated and discussed from a taxonomic and biostratigraphic perspective. The identified conodonts are Dapsilodus obliquicostatus (Branson and Mehl, 1933), Oulodus cf. siluricus (Branson and Mehl, 1933), Kockelella cf. variabilis (Walliser, 1957), “Ozarkodina” bohemica (Walliser, 1964), “Ozarkodina” sagitta sagitta (Walliser, 1964), Wurmiella excavata excavata (Branson and Mehl, 1933), Walliserodus sp., Kockelella? sp, and Ozarkodina? sp. The results obtained allowed to attribute the studied levels to the interval between the top of the “O“. sagitta sagitta Zone and the bottom of the K. variabilis Zone, which range extends from the upper Wenlock (Homerian) to the lower Ludlow (Gorstian)
Conodont assemblages registered in materials from the Silurian Courel syncline, province of Lugo (Spain), are described, illustrated and discussed from a taxonomic and biostratigraphic perspective. The identified conodonts are Dapsilodus obliquicostatus (Branson and Mehl, 1933), Oulodus cf. siluricus (Branson and Mehl, 1933), Kockelella cf. variabilis (Walliser, 1957), “Ozarkodina” bohemica (Walliser, 1964), “Ozarkodina” sagitta sagitta (Walliser, 1964), Wurmiella excavata excavata (Branson and Mehl, 1933), Walliserodus sp., Kockelella? sp, and Ozarkodina? sp. The results obtained allowed to attribute the studied levels to the interval between the top of the “O“. sagitta sagitta Zone and the bottom of the K. variabilis Zone, which range extends from the upper Wenlock (Homerian) to the lower Ludlow (Gorstian)