There are many kinds of fossilized shark teeth.
A couple of days ago we went to Cumberland Island and that’s where we found fossilized shark teeth which are black. Fossilized shark teeth turn black because of the minerals they have in them.
Some sharks can lose up to 35,000 teeth in a lifetime! The most common kind of shark teeth people find are from the Cenozoic which was about 65 million years ago. The largest shark teeth of any kind is from the Megalodon shark.
Their teeth can get up to 7 inches tall or more, but we didn’t find any of these. This picture is from the internet.