5" Priscacara Fossil Fish On Large Plate

 
 
Here is a beautiful example of the fossil fish Cockerellites liops centered on a large plate of matrix. It comes from the famed 18 inch layer of the Green River Formation which produces darkly preserved and very detailed fish fossils. The fish is 5 inches long on a solid 15x14 inch slab of matrix. This slab would be great for framing or hanging on a wall.

Note: We can trim the slab down to a custom size upon request at no charge. This may also substantially reduce the shipping costs.

Priscacara is an extinct genus of perch from the Eocene (55.8-33.8 mya) Fossils of these fish are commonly found in the Green River Formation in Wyoming. Priscacara probably darted about freshwater streams and lakes, snatching at small creatures like snails, crabs, prawns, and tadpoles.

They varied in size; for example, P. liops is a smaller species, never exceeding 150 mm, whereas the larger P. serrata has been found up to 375 mm. Priscacara means, “Primitive head”. These tough looking, ray-finned fish packed a punch if something dared to swallow it. The genus is known for its protective dorsal and anal spines.

50 million years ago, Priscacara thrived in lakes fed by Uinta and Rocky Mtn. highlands. This plucky genus of perch, possibly related to modern-day Cichlids, is now entombed in the fine-grained, lime mud of Fossil Lake. Priscacara eventually went extinct by the end of cooler and drier Miocene (23-5.2 mya).

Today the wonderfully-preserved fossils of Priscacara and other Fossil Lake fauna are collected in several private quarries around Kemmerer, Wyoming. The best preserved fish fossils come from the coveted 18 inch layer. This layer is collected at night under high-powered lights allowing the faint signs of fish under the surface to be more easily observed. These “ghosted” fish then must go through many hours of manual preparation to remove the overlying rock and reveal the Green River fauna in all of its glory.
DETAILS
SPECIES
Cockerellites liops
LOCATION
Kemmerer, Wyoming
FORMATION
Green River Formation
SIZE
5", Matrix 15x14"
CATEGORY
ITEM
#7514
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