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2.6" Chasmosaurus Fossil Jaw Bone Judith River FM MT Cretaceous Dinosaur COA

$ 105.59

Availability: 82 in stock
  • Country/Region of Manufacture: United States
  • All returns accepted: Returns Accepted
  • Condition: Location: Judith River Formation Eastern Montana (Private Land Origin) Weight: 1.9 Ounces Dimensions: 2.6 Inches Long, 1.7 Inches Wide, 0.7 Inches Thick Comes with a Certificate of Authenticity.
  • Return shipping will be paid by: Seller
  • Item must be returned within: 30 Days
  • Refund will be given as: Money Back
  • Restocking Fee: No

    Description

    2.6" Chasmosaurus Fossil Jaw Bone Judith River FM MT Cretaceous Dinosaur COA
    2.6" Chasmosaurus Fossil Jaw Bone Judith River FM MT Cretaceous Dinosaur COA
    Location: Judith River Formation Eastern Montana (Private Land Origin)
    Weight: 1.9 Ounces
    Dimensions: 2.6 Inches Long, 1.7 Inches Wide, 0.7 Inches Thick
    Comes with a Certificate of Authenticity.
    The item pictured is the one you will receive.
    This is a genuine fossil, not a replica.
    Name:
    Chasmosaurus (Cleft lizard).
    Type:
    Herbivore.
    Size:
    4.3 to 4.8 meters long.
    Time period:
    Campanian of the Cretaceous.
    Fossil representation: Many specimens are known allowing for accurate reconstruction. Fossilized skin is also known.
    The elongated frill of Chasmosaurus had two large fenestra in the middle which would have had a skin covering in life-giving the appearance of a 'solid' frill. As a display device, the frill may have been brightly colored with an elaborate display. Also since the frill in these parts was soft tissue, Chasmosaurus may have flushed blood into the area to make the colors even more vivid. The flushing of blood has also brought forth ideas of a possible heat exchange device for thermoregulation, with blood flushed into the area to allow it to cool across a larger surface area. However, because the large fenestrae were filled only with skin, the frill would have provided only minimal defense against a predator.
    Chasmosaurus has also been used as the base for the name of the ceratopsian group Chasmosaurinae. The ceratopsian dinosaurs of this group are noted for their large, long neck frills and relatively short horns, and include others such as Pentaceratops and Anchiceratops.
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