Extinct marine lizard the size of an orca with sharp teeth and a strong jaw was a top predator during the dinosaur age. When you purchase through links on our site, we may earn an affiliate commission ...

A brand new species of enormous sea creature from the Cretaceous era has been discovered in Morocco, lying fossilized next to remains of its last supper. Named Thalassotitan atrox, this giant sea ...

From the creepiest Cambrian critters to massive marine reptiles, wonderfully weird sea creatures have inhabited our oceans for over half a billion years. We've put together a list of 25 of the ...

Sixty six million years ago, sea monsters really existed. They were mosasaurs, huge marine lizards that lived at the same time as the last dinosaurs. Growing up to 12 metres long, mosasaurs looked ...

Scientists and artists have been reconstructing the appearance of dinosaurs and other ancient creatures for centuries. But they've often gotten it wrong. Whether they were hampered by a lack of bones, ...

A gigantic sea monster from the era of the dinosaurs has been discovered and named after a Norse snake. The 24-foot-long creature is a new species of mosasaur—aquatic, carnivorous lizards that lived ...

Dinophiles will want to check out Beyond the Dinosaurs!, Howard Zimmerman's follow-up to Dinosaurs! The Biggest Baddest Strangest Fastest in the same tall, skinny format. Vivid descriptions of beasts ...

Paleontology researchers in Europe have identified a new species of ancient marine reptile – often referred to as a "Jurassic sea monster" or "sea dragon" – that existed nearly 183 million years ago.

In the oceans of earth millions of years ago, danger was never far away and monsters lurked in every shadow. Experience this astounding world by playing as six different prehistoric marine reptiles, ...

Humans have a long history of misinterpreting ancient fossils. Here are 10 creatures from the dinosaur age that looked way different than we thought. When you purchase through links on our site, we ...