GRAPTOLITOS DEL ORDOVÍCICO Y GEOLOGÍA DE LOS AFLORAMIENTOS DEL RÍO VENADO (NORTE DEL DEPARTAMENTO DEL HUILA)
Published 2009-10-20
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Abstract
A graptolite faunal, composed dominantly by the genus Phyllograptus (s.l.) ssp., was recovered from the Venado River sequences. The remains, found in grey shales, suggest a Floian-Darriwilian age. As it is suggested by faunal similarities, Early Paleozoic sequences of Colombia were deposited on a passive margin that was connected with Peruvian, Bolivian and Argentinean platform. Furthermore, on the basis of these new data, it is found that stratigraphy nomenclature currently used for the Early Paleozoic series of the Venado River has to be emendated.
Keywords: Graptolite, Phyllograptus, Pseudophyllograptus, Ordovician, Venado Formation.
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References
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