Description:

North America, Western United States, Wyoming, Kemmerer, Fossil Lake, Green River Formation, Eocene Period, ca. 56 to 33 million years ago. A fossilized Mioplosus fish contained in a limestone matrix with a second partial fish fossil just above. These fish were extracted from the famous fossil-bearing "18-inch layer," where the sediment is highly laminated, so fossils can be excavated nearly whole! The large Mioplosus body is fully extended, the bones in hues of umber brown and softer tissue leaving a lighter orange coloration behind. Mioplosus is related to modern day perch, a solitary predator with sharp teeth for catching smaller fish. Size (fossil): 7.75" L x 2" W x 12" H (19.7 cm x 5.1 cm x 30.5 cm); (matrix): 11" L x 0.75" W x 12" H (27.9 cm x 1.9 cm x 30.5 cm)

Provenance: private New Jersey, USA collection

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#172133

  • Condition: Surface layers not evenly cut around fish and stable fissures and losses to head. Clear protective coating added to fissures and large fish. Smaller fish fossil is partially preserved. Find site collection label on surface as shown.

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August 18, 2022 8:00 AM MDT
Louisville, CO, US

Artemis Fine Arts

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