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    Asterotrygon maloneyi
    Green River Formation, Lincoln Co, Wyoming

    The fossil beds of the Green River Formation are renowned for the abundance of fish species and for the quality of their preservation. Amongst the most sought-after of these specimens is the stingray, its fragile "wing" bones making it a particularly tricky prize for the fossil hunter to excavate. On the rare occasions when they are found and removed successfully, the animal is most usually represented by the Heliobatus, but in 2004 a new species was recognized and described - the Asterotrygon maloneyi. The A. maloneyi is strikingly similar to H. radians but is distinguished by the presence of a dorsal fin covered in denticles directly anterior to the caudal stings, and by individual vertebrae in the tail as opposed to cartilage. These elements are present here in good three-dimensionality, as well as the well-defined tail barbs and the tiny bones radiating from the main body. A superbly prepared example of a highly rare fossil from one of the premier localities in the world, and the first of its kind to be offered at auction, it measures 16 inches long on a kite-shaped matrix 25 x 14¼ inches.

    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
    June, 2011
    12th Sunday
    Bids + Registered Phone Bidders: 3
    Lot Tracking Activity: N/A
    Page Views: 1,461

    Buyer's Premium per Lot:
    19.5% of the successful bid (minimum $14) per lot.

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