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Cambrian rocks of the Springer Peak and Minaret formations of the upper Heritage Group contain conodont faunas. The upper Middle Cambrian Springer Peak Formation has yielded a conodont cluster referable to Phakelodus, and the Upper Cambrian Minaret Formation has yielded conodonts of the genera Furnishina, Proacodus, Phakelodus, and Westergaardodina. Three species each of Furnishina and Westergaardodina are known worldwide; other specimens of Westergaardodina may represent new species, but low numbers and generally poor preservation preclude reliable diagnosis. All of the identified paraconodont and protoconodont taxa are long ranging, but they are consistent with the Cambrian age of the host rocks as determined by the other contained fossils.

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