This vertebra is 6 inches in diameter and 2.5 inches thick. It was found around Palestine, Texas. I have seen some pictures of mammoth or mastodon vertebrae that are similar in size. Is that what this is? I would love to tell you that I found it while on a fossil hunt, but I can't. My wife found it while clearing out some iron ore rocks that had been stacked to form a flower bed outside a house we lived in. She reminds me constantly that it is her fossil. I'm interested to hear what you