6 1/2" Sliced and Polished Ammonite Fossil, 145 to 65 Million Years Old, Discovered in Madagascar, 947 Grams
Updated July 20, 2026
| Lot number | 289 |
| Estimate | $15 - $10,000 |
| Opening bid | $10 |
| Auction | Pre-Columbian, Native American Artifact & Collectibles Auction |
| Date | August 9, 2026 at 9:00 AM CDT |
| Auction house | Heartland Artifact Auctions Inc. |
| Location | Quincy, Illinois |
6 1/2" Sliced and Polished Ammonite Fossil, 145 to 65 Million Years Old, Discovered in Madagascar, 947 Grams
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