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    Description

    CLASSIC AMMONITE
    Sphenodiscus lenticularis
    Cretaceous
    Near Rapid City, South Dakota

    Sphenodiscus is another classic Ammonite featuring intricate suture patterns and remnants of the marginally located siphuncle which are two characteristics both diagnostic to its classification as an Ammonite. The Ammonite terminates into some of original rock matrix that it was deposited in. There are indications of stabilization on the reverse side of the specimen, a common occurance in fossil preparation. The display side is very fine with only minor hints of repair. The shell nacre on the reverse side demonstrates iridescence and shows greens, yellows and pinks as light hits various sections. This specimen was collected in 1975 on the Cheyenne River near Rapid City.It measures 9.5 x 7 inches (24.13 x 17.78 cm).Offered at no reserve.
    Provenance: Private Texas Collection, Self Collected in 1975


    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. All lots are sold "AS IS" under the Terms & Conditions of Auction.

    Auction Info

    Auction Dates
    June, 2013
    2nd Sunday
    Bids + Registered Phone Bidders: 9
    Lot Tracking Activity: N/A
    Page Views: 1,358

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