Two 325-million-year-old ctenacanth shark fossils discovered in Mammoth Cave shed light on ancient marine ecosystems.

When I was a kid, the 90-foot-long, the 180 ton “Ultrasaurus” was supposed to be the biggest dinosaur ever. Then it turned out that this dinosaur was a composite of multiple individuals found ...

but the shell is completely unlike any known dinosaur egg. The supersized soft-shelled egg belonged to an ancient sea lizard known as a mosasau, and is second only in size to the extinct ...

The world’s biggest dinosaur footprint has been discovered in northwestern Australia, measuring at nearly 5 feet 9 inches (1.75 meters), the lead author of a study said. The track belonged to a ...

Until recently, these prehistoric giants ... Now, scientists have discovered a previously unknown species — the largest sea turtle found in present-day Europe ever to be identified.

The latest Jurassic Park movie – in cinemas from July 2025 – is about finding the biggest prehistoric species from land, sea, and air. Members of the public (known as“fossil forecasters ...