(KCEN) -- A Texas fisherman says he made a pre-historic discovery while fishing on the San Antonio River.
He claims he found a Mastodon tooth in it's shallow waters.
Davy Villanueva says he saw it in about a foot of water that was exposed because of the drought.
He says he's also found other bones there, but because of the rains, the area is now covered up.
Villanueva said, "It caught my eye. I walked in the river and, sure enough, I reached down in there and pulled it out and wow. I never seen anything like this."
For right now Villanueva is keeping the location a secret and he says he doesn't know whether he wants to sell it or give it to his son.