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DescriptionKnightia eocaena (fossil fish) (Green River Formation, Lower Eocene; southwestern Wyoming, USA) 1 (32941430804).jpg
Knightia eocaena (Jordan, 1907) - fossil fish in lacustrine marlstone from the Eocene of Wyoming, USA. (CMC VP5183, Cincinnati Museum of Natural History & Science, Cincinnati, Ohio, USA)
Also known as Knightia humilis.
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.
This fossil is Knightia, a fossil herring and the most common fish in the Green River Formation.
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