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Synopsis Conodont faunas from the Durine Member of the Durness Limestone Formation have yielded sixteen species. These faunas bear a close resemblance to previously described ones from North America and Scandinavia and suggest an age for the upper part of the Durine Member near the Arenig-Llanvirn boundary. This is somewhat at variance with Poulsens’ suggestion that the whole of the Durine Member is of Llanvirn age.
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A. C. Higgins (1967) studied this question.
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