LIVERMORE VALLEY LITHOPHILES
Gem and Mineral Society

     

Pachycephalosaurus

 

• Late Cretaceous
• North America
• 15 feet long

• Was the largest member of the 'Bonehead' family. The top of the head was 10 inches thick and may have been used like modern mountain goats for male head-butting.

 


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Gem & Mineral Show 'LITHORAMA 2006'
See the 'LITHORAMA' Page on the web site.