At the end of the Cretaceous Period, a type of giant reptile called mosasaurs occupied and dominated oceanic food webs.

A fossil reveals the existence of Athenar bermani, a new sauropod that redefines the family tree of Utah's giants.

The recently acquired skull of the dome-headed dinosaur Pachycephalosaurus. USNM PAL 803273, Department of Paleobiology, Smithsonian Institution. Gift of Eric and Wendy Schmidt. Photo by James D.

The fossilized skull of a pliosaur. Credit: Paleontological Research Center at Villa de Leyva Fossils of an extinct species of marine turtle (Desmarochelys padilla) from the Early Cretaceous in ...

A giant ocean predator that terrorised the seas during the time of the dinosaurs may have also hunted in rivers, a tooth ...

Scientists have discovered the fossils of two new species of sturgeon fish in the Hell Creek Formation of North Dakota that were likely buried when the dinosaur-ending Chicxulub asteroid hit Earth.

South Africa is well known for its fossil heritage, a record of plants and animals that tells us what the world was like long ago.

It’s hard to overstate how rare and exciting a dinosaur mummy is. And yes, the fossil called “Medusa” could be a dinosaur mummy — the remains of an Edmontosaurus about 66 million years ...

Several years ago my daughter and I took a minivacation to Kelleys Island, home of the famous Glacial Grooves. While we were there the island experienced an explosion of mayflies – they were ...