Skip to main content
Go to accessibility options

Peak season notice: Shipping for this category may take 14–21 business days after cleared payment. Thanks for your patience.

Description

Ammolite Fossil
Placenticeras sp.
Cretaceous
Bearpaw Formation
Alberta, Canada
2.59 x 2.49 x 0.51 inches (6.57 x 6.32 x 1.29 cm)

This striking fossil Ammonite, a Placenticeras, hails from the Upper Cretaceous Bearpaw Formation of Alberta and features a brilliantly iridescent surface of natural Ammolite. Formed from the fossilized shell of an ancient cephalopod, the specimen exhibits a vivid interplay of red, green, gold, and violet. Ammolite is one of the rarest organic gemstones, found only in this part of Canada, and is celebrated for both its fascinating history but also its gem-like qualities. The fossil remnant is beautiful, and the polished surface maximizes the color potential from multiple viewing angles.


Estimate: $300 - up.

Condition Report*: Condition report available upon request.
*Heritage Auctions strives to provide as much information as possible but encourages in-person inspection by bidders. Statements regarding the condition of objects are only for general guidance and should not be relied upon as complete statements of fact, and do not constitute a representation, warranty or assumption of liability by Heritage. Some condition issues may not be noted in the condition report but are apparent in the provided photos which are considered part of the condition report. Please note that we do not de-frame lots estimated at $1,000 or less and may not be able to provide additional details for lots valued under $500. Heritage does not guarantee the condition of frames and shall not be liable for any damage/scratches to frames, glass/acrylic coverings, original boxes, display accessories, or art that has slipped in frames. All lots are sold "AS IS" under the Terms & Conditions of Auction.

Auction Info

Proxy Bidding Ends 
January
1st Thursday 7:50 pm CT
Auction Dates
January
1st Thursday
Proxy Bidding Time Remaining 
4 Days 21h 23m 7s
Internet/Mail Bids: 0
Lot Tracking Activity: 1
Page Views: 44

Buyer's Premium per Lot:
25% of the successful bid (minimum $49) per lot.

This lot is in: 1 - Nature & Science Session
(Lots 76001-76048) - 8:00 PM Central Time, Thursday, January 1, 2026.
[Proxy bidding ends ten minutes prior to the session start time. Live Proxy bidding on Heritage Live now starts within 2 hours of when the auction opens for proxy bidding and continues through the live session.]

Show All Session Information

Show Auction Type Info

Shipping, Taxes, Terms and Bidding
Sales Tax information

Important information concerning Sales Tax and Resale Certificates. Learn More

Terms and Conditions  |  Bidding Guidelines and Bid Increments |  Glossary of Terms

** Lots bearing estimates and without Consignor Reserve shall open at Heritage Auctions' discretion (usually 25% to 60% of the low estimate).

Starting Bid:
$1
Track Item