This was truly a dream come true. While exploring a creek packed with millions of fossil seashells, we made an incredible discovery. Mixed among the shells were associated remains of an ancient horse ...

Most marine animals form their shells from calcium carbonate, which is a tough mineral also found in limestone. Some sponges ...

Fossil seashells in New York’s streambeds aren’t just cool finds - they’re clues to a time when the entire region was buried under a prehistoric sea. These imprints helped scientists rewrite Earth’s ...