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    Description

    SUPERB MULTI-FISH PLAQUE
    Priscacara liops, Priscacara serrata, Knightia alta, Diplomystus dentata
    Eocene
    Green River Formation, Wyoming

    Known now as the "Fossil Lake", the 25,000 square mile Green River Formation in Wyoming was an interconnected system of inland freshwater lakes. Today it is one of the most abundant and well-preserved sources of freshwater fossils in the world, producing some 19 genera of fish from the Eocene epoch, 35-55 million years ago. This superb plaque exhibits that variety, with multiple examples of separate species, from the larval Diplomystus (2⅞ inches long) to the fearsome looking full-grown version (18 inches long). The predaceous Diplomystus is a relative of today's herring, with a distinctive upturned mouth bristling with teeth, ideally suited for surface-feeding. One of its most common prey was the smaller Knightia, present here in several examples (also a relative of the herring and an abundant denizen of the Fossil Lake). To the Knightia goes the honor of being Wyoming's official State Fossil. Two species of Priscacara also roamed these waters, the P. liops which rarely exceeded 6 inches in length, and the P. serrata which often grew as large as 14¾ inches. The notable aspect of all fossils from this locality is the superb state of preservation they display, perfectly exhibited by the present example. The fish all boast the superb detail of bone structure and texture familiar in these specimens, and their dark brown coloring stands out in fine aesthetic contrast from the pale cream matrix. A magnificent display piece, it measures 39½ x 51¼ inches.


    Estimate: $16,000 - $20,000.

    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.

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    Auction Dates
    June, 2008
    8th Sunday
    Bids + Registered Phone Bidders: 1
    Lot Tracking Activity: N/A
    Page Views: 506

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