File:Pteris species USNM P36884 img1.jpg

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English: First identified as a 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 Smithsonian Genus indet. sp indet. Knowlton USNM P36884
Author Fred Cochard


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