2.4" Pachycephalosaurus Caudal Vertebra - Montana

 
 
 
This is a 2.4" caudal (tail) vertebra of a Pachycephalosaurus ("thick headed lizard") from the Hell Creek Formation, Glendive, Montana.

  • Pachycephalosaurus was a bipedal dinosaur that lived during the Late Cretaceous period and probably was about 15 feet in length.

  • Pachycephalosaurus had a distinctive, large, bony, dome on top of it's skull up to 10 inches thick to cushion it's brain from impacts.

  • Some paleontologists believe this thick skull may have been used for head-butting, much like rams while others contend it may have been a sexual display.

  • It was one of the last non-avian dinosaurs before the K-T extinction event, 65 million years ago.

  • There is only one known species of Pachycephalosaurus, Pachycephalosaurus wyomingensis. It's remains have been found in Montana, South Dakota and Wyoming.

  • It was either a herbivore or an omnivore with small leaf shaped teeth which would have been very effective at shredding plants.


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    An artists reconstruction of Pachycephalosaurus. By Jordan Mallon

    DETAILS
    SPECIES
    Pachycephalosaurus
    LOCATION
    Glendive, Montana
    FORMATION
    Hell Creek Formation
    SIZE
    2.4 x 1.5 x 1.6"
    CATEGORY
    SUB CATEGORY
    ITEM
    #101769
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