Jurassic Grallator Theropod Dinosaur Footprint Fossils
Updated August 16, 2026
| Lot number | 0067 |
| Estimate | $800 - $1,200 |
| Opening bid | $350 |
| Auction | American Frontier | Ethnographic | Tribal Art |
| Date | August 24, 2026 at 11:00 AM EDT |
| Auction house | Artemis Fine Arts |
| Location | Louisville, Colorado |
Ca. 200 million years old. North America, Eastern United States, Connecticut, Connecticut River Valley, Early Jurassic period, ca. 200 million years ago. A mica-bearing slate or mudstone preserving
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