Dinopedia
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The colepiocephale was discovered by L.M Sternberg in 1945 and is viewed as a species of Stegoceras but it was then studied another time by palaeontologist Robert Sullivan in 2003. He then found enough features in the dome of this pachycephalosaur to distinguish it from the stegoceras and give it its very own genus. It is the oldest definite pachycephalosaurid that has been found in North America. (There has been another found with a little earlier strata but has not been studied).  

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colepiocephale

Details: Cassification: Marginocephalia, pachycephalosauria Meaning of name: Knucklehead Named by: Sullivan, 2003 Time: Campanian stage of the late cretaceous Size: 1M (3ft) Lifestyle: Low browser Species: C. lambei


Features:[]

The dome has quite an oblique slope on it, producing a more flattened aspect to the front of the head, and is somewhat of a triangular in the top view. The bones of the side of the skull aren't as complex as the bones of other pachycephalosaurids the area or range in the dome shapes among the different genera of other pachycephalosaurids which suggests they functioned as a display device allowing individuals to tell who is who or rather distinguish one herd from another. In that way they would be similar to modern birds that have spectacular beaks or flamboyant feathered crests to differ between one species from another.

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