File:Alnus hollandiana as Prunus rustii USNM P36978 Plate24 Fig5.jpg

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English: Knowlton Plate 24 fig 4; First figured as a Prunus rustii syntype. Species later synonymized into Alnus hollandiana by Chaney & Axelrod, 1959

Langhian (Barstovian), Middle Miocene; Spokane Florule, Latah Formation; Chicago, Milwaukee & St. Paul Railway cut #2, Spokane, Washington, U.S.A.

Department of Paleobotany, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia; specimen #36978; collected by Henry Fair and Kirk Bryan, 1923
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. 140. United States Geological Survey. pp. 17–55, plates VIII-XXXI. doi:10.3133/pp140A.
Author Knowlton. Frank Hall, 1926

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current15:56, 12 October 2023Thumbnail for version as of 15:56, 12 October 2023170 × 291 (31 KB)Kevmin (talk | contribs)Uploaded a work by Knowlton. Frank Hall, 1926 from {{cite report |last1=Knowlton |first1=F.H. |year=1926 |chapter=Flora of the Latah Formation of Spokane, Washington, and Coeur d'Alene, Idaho |title=Shorter contributions to general geology, 1925 |series=Professional Paper |publisher=United States Geological Survey |volume=140 |pages=17-55, plates VIII-XXXI |doi=10.3133/pp140A |url=https://pubs.usgs.gov/pp/0140a/report.pdf}} with UploadWizard

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