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James Morton Schopf

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Pteridosperm Male Fructifications American Species of Dolerotheca, with Notes Regarding Certain Allied Forms (Classic Reprint)
Contributions to Pennsylvanian Paleobotany Mazocarpon Oedipternum, Sp. Nov. and Sigillarian Relationships (Classic Reprint)
Contribution to Pennsylvanian Paleobotany Notes on the Lepidocarpaceae (Classic Reprint)