Hello my name is Steve. I have a dinosaur bone. It is about 12 inches by 12 inches. I'm trying to sell it on eBay or another site but I do not know what to call it or how much it may be worth.is anyone able to give me any information on this bon
e. I would greatly appreciate it .

Take it to your local natural history museum for identification.

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Probably from the long extinct Saber toothed buffalosaurous