Scientific Quarterly Journal of Geosciences

Scientific Quarterly Journal of Geosciences

Conodonts’ role on biostratigraphy, An example from Devon, South of England

Document Type : Original Research Paper

Author
Department of Geology, Faculty of Sciences, Mashhad University, Mashhad, Iran
Abstract
Conodont samples have been examined from East Ogwell Limestone, Devon, South of England. Samples give an Upper Devonian age. Grey reefal limestones are generally dated to the Frasnian gigas zone. Red shaly micrites associated with the limestones are generally dated as Famennian crepida to rhomboidei zones.
There is evidence of tectonic repetition. It is suggested that the Frasnian reef was uplifted and karstically eroded by early Famennian times to give an irregular filling of red shaly micrites.
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