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Middle Pennsylvanian Plant Fossils: Problematic Occurrence in the Bronx

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Science  12 Jul 1968:
Vol. 161, Issue 3837, pp. 157-158
DOI: 10.1126/science.161.3837.157

Article Information

vol. 161 no. 3837 157-158

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Author Information

  1. E-an Zen1,
  2. Sergius H. Mamay1
  1. 1U. S. Geological Survey, Washington, D.C. 20242

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