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Notes on Erian (Devonian) plants from New York and Pennsylvania
Date:
1893
Citation:
Penhallow, D. P. 1893. "Notes on Erian (Devonian) plants from New York and Pennsylvania." Proceedings of the United States National Museum. 16 (928):105–114, 6 pls.. https://doi.org/10.5479/si.00963801.16-928.105
