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I am obtaining this 2.6 inch pachy horn spike. Is there anyway to tell what particular specimen? Pachy vs stygimoloch vs Dracorex? Thanks all. 

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You are not going to be able to say which one.

There are some very prominent paleontologist that believe they are all the same species of Pachycephalosaurus.  You are looking at growth stages.  BTW its not a horn but a squamosal spike, nice one. 

 

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7 hours ago, Troodon said:

Well there are some very prominent paleontologist that believe they are all the same species of Pachycephalosaurus.  You are looking at growth stages.  BTW its not a horn but a squamosal spike, nice one.  You are not going to be able to say which one.

 

Screenshot_20170410-030600.thumb.jpg.3bd154505533ebd194c857bcd6048c0c.jpg

Thank you as always. You are an invaluable source of knowledge. 

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Beautiful specimen. I’ve wanted to grab one of those, but just can’t convince myself to pay for one. I’ve seen a handful of them come up for sale in the last six months. But they get pricey!

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