We-well-well.
A Dentist examined the travertine tile in his folks’ bathroom, and found the jawbone of a Neanderthal.
And it might not be unique.
NEWSLINK
My jaw just hit the floor when I heard about this. I knew this kind of thing was theoretically possible, but I didn’t think the reality of it was set in stone. I mean, mandible you read that’s passed off as fact in the news can make you wonder sometimes,
Well, shut my mouth. 
Really gives you something to chew on.
I refuse to believe there was ever an actual person named “Dietrich Mania”.
However it’s possible that an ancient wrestler named Dietrich had a rabid following.
That would creep me out so much to have a body part, however old, embedded in my bathroom floor. I would probably pay to have the tile removed and replaced.
Travertine? Oh no. I’m keeping that. No matter whose jaw wags.
Set their teeth all they want.
Travertine is nice stuff.
Depending on the cost I might just put a rug over it.
Speaking of jawbones…