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Pratt, Brian R. An Ibexian (Early Ordovician) trilobite faunule from the type section of the Rabbikettle Formation (southern Mackenzie Mountains, Nortwest Territories). Brian R. Pratt. In Canadien Journal of Earth Sciences/Journal canadien des sciences de la terre , Canadien Journal of Earth Sciences/Journal canadien des sciences de la terre. 14 s. : .25
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