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Image: Priscacara serrata FMNH PF13014 img1

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Description: 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.

Classification: Animalia, Chordata, Vertebrata, Actinopterygii, Perciformes, Priscacaridae

Stratigraphy: Fossil Butte Member, Green River Formation, upper Wasatchian Stage (Wa4)/Ypresian Stage/Lostcabinian, Lower Eocene

Locality: Fossil Lake Basin, southwestern Wyoming, USA.
Author: James St. John
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC-BY-SA-3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
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