Amazing Shrimp Fossil from the Green River Formation, Wyoming, 50 Million Years Old, Very Detailed Example in Matrix.
Updated August 15, 2026
| Lot number | 561 |
| Estimate | $15 - $10,000 |
| Opening bid | $10 |
| Auction | Huge Native American, Pre-Columbian Artifact, and Collectibles Auction |
| Date | September 6, 2026 at 9:00 AM CDT |
| Auction house | Heartland Artifact Auctions Inc. |
| Location | Quincy, Illinois |
Amazing Shrimp Fossil from the Green River Formation, Wyoming, 50 Million Years Old, Very Detailed Example in Matrix.
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