Capulisporites longiprocessum, a new species of plant spore, is described and illustrated from the Belly River formation of westcentral Alberta. A preliminary palynological study of the Belly River, Edmonton, and Paskapoo formations suggests that this spore is restricted to the Belly River formation. This conclusion is strengthened by the earlier studies of Campbell (1962), who indicated that spores of this type were confined to strata of pre-Edmonton formation age.

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