Inoceramus platinus
    Upper Cretaceous
    Niobrara Formation, Smoky Hill Chalk Member, Western Kansas
    This is a finely preserved example of the largest clam species ever to have lived, the Inoceramus, which could grow up to as much as four feet in width in the murky waters of the Western Interior Seaway and elsewhere throughout the world during the Cretaceous period. As fossils, they are usually found very flat and are extremely difficult to excavate (particularly in the unstable chalk of the Niobrara Formation); this specimen, therefore, shows exceptional three-dimensionality, detail, and texture. Inoceramus clams also are covered with small fossil oysters, ostrea congesta. Since the ancient inland sea was silt covered, the oysters used the large clams as a stable attachment surface; thus resulting in a specimen that is two different fossils in one. One small area near the center is open to allow the observer a view of the smooth interior of the shell. Naturally colored a warm and attractive range of browns, tans and grays, it measures 37ΒΌ inches across, strikingly presented in a pale creamy matrix, framed in dark-stained wood, 37 5/8 x 43 5/8 inches overall.

    Estimate: $6,000 - 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. 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. All lots are sold "AS IS" under the Terms & Conditions of Auction.

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    Auction Dates
    June, 2011
    12th Sunday
    Bids + Registered Phone Bidders: 0
    Lot Tracking Activity: N/A
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