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Pennsylvanian tree fern compressions Caulopteris, Megaphyton, and Artisophyton gen. nov. in Illinois
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Author(s):
Pfefferkorn, Hermann W.
Publisher(s):
Illinois State Geological Survey
Contributor(s):
Biodiversity Heritage Library
Collection(s):
Biodiversity Heritage Library
Category:
Others
Subject(s):
Paleobotany--Pennsylvanian. , Ferns, Fossil. , Bomen (biologie)--gtt , Paleobotany--Illinois. , Varens.--gtt
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