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Priscacara serrata Cope, 1877 fossil fish (perch) in lacustrine marlstone from the Eocene of Wyoming, USA (public display, FMNH PF13014, Field Museum of Natural History, Chicago, Illinois, USA).
The Green River Formation of Utah-Colorado-Wyoming is famous for having vast oil shale deposits and for having exquisitely-preserved fossils. Fossil Butte National Monument in southwestern Wyoming preserves and displays some of these high-quality fossils. Leaves and fish are the most common large fossils in the Fossil Lake Basin of the Green River Fm.
Stratigraphy: Fossil Butte Member, Green River Formation, upper Wasatchian Stage (Wa4)/Ypresian Stage/Lostcabinian, Lower Eocene
Locality: Fossil Lake Basin, southwestern Wyoming, USA.
Date
Source
Priscacara serrata fossil fish (Green River Formation, Lower Eocene; Fossil Lake Basin, southwestern Wyoming, USA) 1
Author
James St. John
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/15335466180 (archive). It was reviewed on 15 January 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.
15 January 2019
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author name string: James St. John
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Nikon D70s
inception
10 June 2011
exposure time
0.01666666666666666666 second
f-number
5
focal length
70 millimetre
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22:56, 26 June 2019
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