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  1. Contributions to Pennsylvanian paleobotany Mazocarpon oedipternum, sp. nov. and Sigillarian relationships,
    By: Schopf, James Morton,
    Publication info: Urbana, Ill.,1941.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Illinois  Mazocarpon  Paleobotany  Pennsylvanian  
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