Dietfurt limestone is a natural stone that formed 150 million years ago. The stone exhibits prehistoric fossils such as ammonites and belemnites that make each individual piece unique.

The tile, made of a type of limestone called travertine ... often contains old fossils, and that digging it up can unearth ancient treasures. Those fossils can be anything that washes into ...

According to a Reddit user who shared images on the website’s fossils subreddit (r/fossils), their family noticed a peculiar item in their floors after installing new travertine tiles ...