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    Description

    CRYSTAL - FILLED AMMONITE
    Pachydiscus species
    Cretaceous
    Morondava, Madagascar

    Ammonites represent some of the most beautiful fossils in the world of Paleontology, and many are highly prized by collectors for their decorative appeal. This well-preserved and exotic-looking specimen is sectioned into halves and beautifully polished, the better to reveal its internal structure. Every whirling chamber is clearly visible and many are accented by golden honey-colored crystals of calcite. Each half measures 12 inches in diameter and is supported on a metal display stand. This ammonite belongs to the predaceous genus Pachydiscus, whose hydrodynamic streamlined shell was designed for swift and powerful movement. The Pachydisca, like all ammonites, are the fossil relatives of the living octopus, squid, cuttlefish and nautilus (Cephalopods); their soft anatomy may have resembled that of their modern-day living relatives, with numerous tentacles, sharp beaks and enlarged eyes. Ammonites are of central importance to the study of paleontology in that they provide a reference for determining the age of certain sedimentary rocks, and are often used for reconstructing ancient marine assemblages as well as examples in the study of evolutionary biology. They became extinct mysteriously at the end of the Cretaceous period, approximately 65 million years ago, along with the dinosaurs.


    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

    Auction Dates
    January, 2008
    20th Sunday
    Bids + Registered Phone Bidders: 9
    Lot Tracking Activity: N/A
    Page Views: 1,760

    Buyer's Premium per Lot:
    19.5% of the successful bid (minimum $9) per lot.

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    Sold on Jan 20, 2008 for: Sign-in or Join (free & quick)
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