Dueling Dinosaurs
Lot 1032W
Dueling Dinosaurs
US$ 7 million - 9 million
£4.3 million - 5.5 million
amended

Lot Details
Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs Dueling Dinosaurs
Dueling Dinosaurs
The Montana Dueling Dinosaurs:
An Historic Dinosaur Discovery
Nanotyrannus lancensis
Chasmosaurine ceratopsian (undescribed species)
Hell Creek Formation, Garfield County, Montana


In 2006, a discovery was made in Garfield County, Montana representing one of the most important finds since humans first began uncovering dinosaur bones. Two specimens — the most complete dinosaur skeletons ever found in the Hell Creek Formation — were uncovered. Astoundingly, they were also fully articulated. Adding further significance, they were presented in such a manner as to suggest that they died while locked in mortal combat.

The Montana Dueling Dinosaurs comprise a theropod, thought to be a Nanotyrannus lancensis (a relative of Tyrannosaurus rex), and a large Chasmosaurine ceratopsian of undescribed species. This is one of only two known occurrences where a theropod (meat-eating dinosaur) and
its ornithischian (herbivorous dinosaur) prey are preserved together.

Two points make The Montana Dueling Dinosaurs particularly important in terms of taxonomic understanding of dinosaur species: (1) The ceratopsian may represent a new and undescribed species (the uniqueness of its skull and pelvis appears to differentiate it from Triceratops), and (2)

The controversy surrounding the genus, Nanotyrannus may be put
to rest with further study of the theropod. Previously, researchers have contended that Nanotyrannus was simply a juvenile version of T. rex. The lack of theropod skeletons available for study has effectively stalled this debate; this remarkable specimen has the potential to end it.

One of the most valuable features of The Montana Dueling Dinosaurs is the presentation of the dinosaur specimens in preserved taphonomy. The specimens were removed from the ground in large, plaster-jacketed sections of earth, preserving the spatial relationships in which the bones were found within each block. This provides, quite literally, fertile ground for scientific study of the individuals, the relationship between the two species, and life during the Cretaceous Age. Because the dinosaurs are also articulated, scientists will be able to learn about the anatomy and physiology of both theropods and ceratopsians. Also of importance is the presence of a leaf horizon directly beneath the two skeletons.

The excavation site will be made available for scientific study to better understand the series of events that led to this unique preservation.

The theory that the two individuals were responsible for each other's deaths is evidenced by several factors: (1) the presence of Nanotyrannus teeth within the carcass of the ceratopsian, (2) the obvious lateral crushing of the Nanotyrannus skull and, (3) the fact that the tail of the meat eater lies directly under and in contact with the rear foot of the herbivore. At this time, scientists theorize that predator and prey are presented together in the final death pose of each.

Both dinosaur specimens of The Montana Dueling Dinosaurs exhibit preserved soft tissue, including skin — an extremely rare attribute. Although the texture of the skin on the Nanotyrannus appears very fine and difficult to discern, a skin envelope is clearly preserved. The coarser texture of the ceratopsian skin is clearly visible, even on the frill. In addition, these specimens provide an opportunity to explore for stomach contents.

The paleontological revelations that lie within The Montana Dueling Dinosaurs have yet to be fully uncovered. An awe- inspiring piece, The Montana Dueling Dinosaurs are an historic discovery and a magnificent treasure.




Saleroom notices

  • Please contact the Operations Department at 212-644-9113 for special instructions regarding the collection of this lot.
Auction information

This auction is now finished. If you are interested in consigning in future auctions, please contact the specialist department. If you have queries about lots purchased in this auction, please contact customer services.

Buyers' Obligations

ALL BIDDERS MUST AGREE THAT THEY HAVE READ AND UNDERSTOOD BONHAMS' CONDITIONS OF SALE AND AGREE TO BE BOUND BY THEM, AND AGREE TO PAY THE BUYER'S PREMIUM AND ANY OTHER CHARGES MENTIONED IN THE NOTICE TO BIDDERS. THIS AFFECTS THE BIDDERS LEGAL RIGHTS.

If you have any complaints or questions about the Conditions of Sale, please contact your nearest customer services team.

Buyers' Premium and Charges

For all Sales categories excluding Arms & Armor, Coins & Medals, Motor Cars, Motorcycles, and Wine & Whisky:

Buyer's Premium Rates
25% on the first $100,000 of the Hammer Price
20% from $100,001 to $2,000,000 of the Hammer Price
12% on the excess over $2,000,000 of the Hammer Price

Payment Notices

Payment for purchases may be made in or by (a) cash, (b) cashier's check or money order, (c) personal check with approved credit drawn on a U.S. bank, (d) wire transfer or other immediate bank transfer, or (e) Visa, MasterCard, American Express or Discover credit, charge or debit card. A processing fee will be assessed on any returned checks. Please note that the amount of cash notes and cash equivalents that can be accepted from a given purchaser may be limited.

Shipping Notices

For information and estimates on domestic and international shipping as well as export licences please contact Bonhams Shipping Department.

Lot symbols
W Shipping & handling restrictions apply

Objects displayed with a w will be located in the Bonhams Warehouse and will only be available for collection from this location.

Contacts
  1. Tom Lindgren
    Specialist - Natural History
    Bonhams
    Work
    7601 W. Sunset Boulevard
    Los Angeles, United States 90046
    Work +1 310 469 8567
    FaxFax: +1 323 850 5843
Similar Items