1 2 "Fagus". The International Fossil Plant Names Index. Retrieved 6 Feb 2023.
↑ Tanai, T. "Des fossiles végétaux dans le bassin houiller de Nishitagawa, Préfecture de Yamagata, Japon". Japanese Journal of Geology and Geography. 22: 119–135.
↑ Manchester, S. R.; Dillhoff, R. M. (2004). "Fagus (Fagaceae) fruits, foliage, and pollen from the Middle Eocene of Pacific Northwestern North America". Canadian Journal of Botany. 82 (10): 1509–1517. Bibcode:2004CaJB...82.1509M. doi:10.1139/b04-112.
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