Wikipedia does not yet have an article about Hornbeam. You can help by creating it. The page that you are currently viewing contains information about Hornbeam's taxonomy.
Not sure why you're here? Get started with Wikipedia taxonomy.
Pigg, K.B.; Manchester, S.R.; Wehr, W.C. (2003). "Corylus, Carpinus, and Palaeocarpinus (Betulaceae) from the Middle Eocene Klondike Mountain and Allenby Formations of Northwestern North America". International Journal of Plant Sciences. 164 (5): 807–822. doi:10.1086/376816.