I'm pretty sure it's dead...sure smells dead anyway.
I asked the fellow what kind of critter it came from, and he said," a cow ". That's the best I can do. I agree, it looks like a hippy cow to me too. The base at the skull was eaten away so I had to cut it where I did. As it is it's 21" along the outside curve. It's going to require some serious scraping to thin it, and remove the rough outside. But it has a nice double curve.