JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. The Micropaleontology Project, Inc. is collaborating with JSTOR to digitize, preserve and extend access to Micropaleontology. ABSTRACT Following a review of previous literature on Classopollis Pflug, 1953 and a discussion of its nomenclature, type species, and diagnosis, this pollen genus is here emended on the basis of numerous specimens recoveredfrom Permian to Upper Cretaceous rocks in Canada. The type species, Classopollis classoides Pflug, is also emended, and three new species are described. The stratigraphic occurrence, possible depositional environment, and possible affinities of the genus are discussed.

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