A landowner in Argentina discovered the fossilized remains of a prehistoric marine reptile, identified as an ichthyosaur, in the province of Neuquén.

A new study has uncovered evidence that a giant marine reptile from the Early Jurassic period used stealth to hunt its prey in deep or dark waters—much like owls on land today.

A 246 million-year-old reptile fossil discovered by scientists in New Zealand has been identified as the oldest marine reptile fossil found in the Southern Hemisphere, according to a Swedish ...

Scientists have discovered a 246 million-year-old marine reptile fossil, the oldest of its kind to be found in the Southern Hemisphere, shining a new light on the early evolution of marine mammals.

The discovery of a giant marine reptile skull in the United States has revealed new theories about the speed of evolution and how quickly the process can produce diversity.

Researchers have discovered the oldest known remains of a giant ancient oceanic reptile, known as an ichthyosaur, on a remote Arctic island, offering new evidence of how the creature may have evolved.

An international team of researchers discovered a new species of ichthyosaur, a marine reptile that lived in the age of dinosaurs. The 130 million-year-old fossil skull is particularly notable for ...

By Amarachi Orie, CNN (CNN) — Scientists have discovered a 246 million-year-old marine reptile fossil, the oldest of its kind to be found in the ...