File:Alnus fairii as Betula heteromorpha USNM P36932 img1.jpg

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English: First figured as Betula heteromorpha. Specimen later reidentified as Alnus fairii by Wolfe, 1966 - Knowlton Plate 17 fig 5;

Langhian (Barstovian), Middle Miocene; Spokane Florule, Latah Formation; Spokane, Portland & Seattle Railway cut, Spokane, Washington, U.S.A.

Department of Paleobotany, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia; specimen #P3692; collected by R. W. Chaney, 1922
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Source Smithsonian Betula heteromorpha Knowlton USNM P36932
Author Fred Cochard
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