Large Jurassic Fossilized Arietites Ammonite
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Description
Western Europe, Germany, Jurassic period, ca. 183 to 175.6 million years ago. A superb ammonite fossil (Arietites sp.) with excellent shell structure - prominent ribs and some suture patterning! The shell has almost been fully excavated, leaving some stone matrix on the verso to serve as a base for the shell to stand on with remains of smaller brachiopod shells embedded in the surface. Small cavities known as vugs have also developed on the verso, which reveal that the material lining the interior of the chambers turned into quartzite crystals. Larger ammonites usually do not survive fossilization - the shells often compress and collapse under the pressure- making this 12" diameter Arietites especially impressive! Size: 12" Diameter x 4" W (30.5 cm x 10.2 cm) Size: 12" L x 4" W (30.5 cm x 10.2 cm)
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.
A Certificate of Authenticity will accompany all winning bids.
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#181527
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.
A Certificate of Authenticity will accompany all winning bids.
We ship worldwide to most countries and handle all shipping in-house for your convenience.
#181527
Condition
Professionally prepared with some new material added to stone matrix as a base for the fossil to stand upright on. Small fissures with stabilizing adhesive, otherwise fossil is all original material and excellent. Some nice vug cavities on the verso and suture lines.
Buyer's Premium
- 26.5%
Large Jurassic Fossilized Arietites Ammonite
Estimate $2,600 - $3,900
6 bidders are watching this item.
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Item located in Louisville, CO, usSee Policy for Shipping
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Auction Curated By
Owner/Executive Director, Antiquities & Pre-Columbian Art
PhD. Art History, Director, Fine & Visual Arts
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