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Hadrosaur Sacrum
Bones and Casts
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Boneheads excavated, cleaned, prepared, molded, cast, and mounted these specimens.
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Period: Upper Cretaceous, Boquillas formation Location: near Terlingua Texas Collection: Ken Barns |
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The Sacrum is a section of fused vertebra that give the hip stability. The bone bar on the side is where the femur attached. Even though dinosaurs walked upright like mammals, they did not have ball & socket joints like we do. This specimen still had recognizable tendons. A Hadrosaur had a stiff back and tail because of these tendons. |
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Just out of the field case
Jumbled spines
Opening up
Half cleaned
Cast for mounting
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