Description:

North America, United States, Wyoming, Green River Formation, Eocene Epoch, ca. 53.5 to 48.5 million years ago. A striking fossil panel featuring preserved palm fronds inlaid with three fish - likely Mioplosus labracoides and Knightia eocaena - both classic species from the Green River Formation. The composition creates a natural 'aquarium' effect, as if the fish are swimming amidst the radiating fronds. Each fossil fish is carefully excavated and recessed into the surface, inlaid over the matrix of the palm frond. The stone slab is securely mounted on a custom wooden backing and comes with metal hardware for wall display. Size: 29" L x 1.2" W x 35" H (73.7 cm x 3 cm x 88.9 cm)

The sediment from the Green River Formation was deposited over a 5-million-year span, the layers of flora and fauna may not have fossilized at the same time - but make for interesting composites. The Eocene world was the warmest of the Cenozoic (our current era), with an average mean temperature around 86 F (30 C) (for comparison, the average mean temperature in the last seventy years is around 58 F (14 C). Although the map of the Earth's surface would have been very recognizable to us today, with most of the continents in place and India moving close to its current position, there were basically no ice caps and huge swaths of the landscape were covered with water, including vast inland seas. This impressive aquarium like arrangement creates a rare scene from a prehistoric environment that was drastically different than what the semi-arid Wyoming landscape of today!

Provenance: private Berthoud, Colorado, USA collection

All items legal to buy/sell under U.S. Statute covering cultural patrimony Code 2600, CHAPTER 14, and are guaranteed to be as described or your money back.

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#197674

  • Condition: Professionally prepared, fish is inlaid into the surface. Areas of restoration and pigment touchup: upper right has infill to the stone matrix between fronds. Lower left around the fish has infill to palm and matrix. Mounted on a wooden board backing. Great preservation to fish and palm. Comes with metal hardware for mounting on a wall.

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November 6, 2025 8:00 AM MST
Louisville, CO, US

Artemis Fine Arts

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