Classification System: APG IV
Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Fagales
Familia: Betulaceae
Subfamilia: Coryloideae
Genus: †Palaeocarpinus
Species: P. barksdaleae
Name
Palaeocarpinus barksdaleae Pigg, Machester, & Wehr 2003
Type locality
Gold Mountain (UWBM Location B5077), Early Eocene, Tom Thumb Tuff Member, Klondike Mountain Formation, Republic, Washington, USA
Type material
Holotype: Burke Museum of Natural History and Culture, University of Washington, Seattle, Washington, USA UWBM 97408A&B
Paratypes: Burke Museum of Natural History and Culture, University of Washington, Seattle, Washington, USA UWBM 74315, 74319A, 97107–97117A, 97118–97153, 97262–97276, 97317–97351, 97353–97354, 97407A, 97409-97415
Paratypes: Arizona State University, Tempe, Arizona, ASU 1-5
Paratypes: Florida Museum of Natural History, Gainesville, Florida UF: 26689, 26690
References
Pigg, Kathleen B., Manchester, Steven R. & Wehr, Wesley 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 pp. 807-822
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