File:Pteris species USNM36884 Plate9 fig10.jpg

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Description
English: Fern, fragment, X 2. - Knowlton Plate 9 fig 10; leaf specimen, later identified as Pteris sp. by Berry 1929

Langhian (Barstovian), Middle Miocene; Oregon-Washington Railroad & Navigation Co Railway cut 2, Spokane Florule, Latah Formation, Spokane, Washington, U.S.A.

Department of Paleobotany, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia; specimen #36884; collected by Henry Fair and Kirk Bryan,

May, 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 F. H. 1926

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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.

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current19:07, 29 September 2023Thumbnail for version as of 19:07, 29 September 2023172 × 186 (21 KB)Kevmin (talk | contribs)Uploaded a work by Knowlton F. H. 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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