File:Quercus payettensis as Quercus cognatus USNM P36953 Plate21 Fig2.jpg

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Description
English: Knowlton Plate 21 fig 2; First figured as Quercus cognatus. Species later moved to Quercus payettensis by Chaney & Axelrod, 1959

Langhian (Barstovian), Middle Miocene; Coeur d'Alene Florule, Latah Formation; Edwards ranch, Stanley Hill, Coeur d'Alene, Idaho, USA

Department of Paleobotany, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia; specimen #P36953; collected by H. J. Rust, July, 1920.
Date
Source Knowlton, F.H. (1926). "Flora of the Latah Formation of Spokane, Washington, and Coeur d'Alene, Idaho". Shorter contributions to general geology, 1925 (PDF) (Report). Professional Paper. Vol. 140. United States Geological Survey. pp. 17–55, plates VIII-XXXI. doi:10.3133/pp140A.
Author Knowlton. Frank Hall, 1926

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