Two new leptosporangiate ferns from in situ volcanic ash of the Whetstone Horizon (Kladno Formation, Pennsylvanian), Pilsen Basin, Czech Republic.
| Autor: | Pšenička, Josef, Zhou, Weiming, Boyce, C. Kevin, Frojdová, Jana Votočková, Bek, Jiří, Opluštil, Stanislav, Wang, Jun |
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| Zdroj: | In Review of Palaeobotany and Palynology April 2022 299 |
| Databáze: | ScienceDirect |
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