Green River Formation Fossilized Fish in Matrices
Updated August 6, 2026
| Lot number | 0168 |
| Estimate | $300 - $450 |
| Opening bid | $100 |
| Auction | Summer Marketplace | Ancient & Ethnographic |
| Date | August 13, 2026 at 11:00 AM EDT |
| Auction house | Artemis Fine Arts |
| Location | Louisville, Colorado |
North America, United States, ca. 53,500,000 - 48,500,000 BCE. North America, Western United States, Green River Formation, Eocene, ca. 53.5 to 48.5 million years ago. A collection of stone matrices
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