Perot Museum of Nature and Science in Dallas is chipping away at the fossilized remains of the prehistoric marine reptile.

In March, scientists and volunteers rushed to excavate a fossil-rich quarry at the Dinosaur Discovery Site in St. George ...

The ancestors of today’s crocodylians survived two mass extinction events. A new study has revealed a key factor behind their ...

Why do some ancient animals become fossils while others disappear without a trace? A new study reveals that part of the answer lies in the body itself. The research shows that an animal's size and ...

Long before neighborhoods sprawled across North Texas, ancient seas teemed with formidable marine reptiles. One of those long ...

The bones, which Bennison found in Del Puerto Canyon in Stanislaus County, represented the first scientifically documented ...

Geologists near Starkville found a bone of a Mosasaurus hoffmannii, one of the biggest species of mosasaurs, which could reach lengths of 50 feet.

The fossil was found in an area that was once ... This is bigger than most dinosaurs walking around on land." Mosasaurs were marine reptiles; lizards that adapted to swimming and living in seas ...