Most people picture the time of dinosaurs as a steamy, tropical world. But during the Late Cretaceous period, northern Alaska ...

The Arctic landscape during the Cretaceous Period may have been dominated by the dinosaurs, but the rivers and streams held something more familiar. Alaska's fresh waters 73 million years ago were ...

Learn what secrets this pregnant ichthyosaur reveals from the Early Cretaceous and why this find is so important.

Researchers uncovered the oldest known salmon species, showing that northern fish have ancient Arctic roots dating back 73 ...

Among them were pliosaurs with giant jaws, toothy crocodile-like reptiles (thalattosuchia), and sleek, fast, fish-shaped ...

Long before the carnage began, the Cretaceous picked up where the Jurassic ... long-necked and toothy marine reptiles terrorized fish, ammonites, and mollusks in the seas; pterosaurs and hairy ...

Xiphactinus was one of the largest bony fish of the Late Cretaceous and is considered one of the fiercest creatures in the sea. A powerful tail and winglike pectoral fins shot the 17-foot-long (5 ...

The sudden heat altered oceans’ chemical composition, which affected some top aquatic reptilian predators more than some ...

Researchers determined the season during which the meteor struck by studying the bones of fish excavated from a contentious field site. Amanda was an associate editor at The Scientist, where she ...

It lived 84-81 million years ago and is thought to have hunted fish, squids and ammonites. The plant life of the Cretaceous was quite different to that of today. For example, temperate rainforest grew ...

Late Jurassic and Early Cretaceous oceans are known for enormous and fierce predators like pliosaurids with 2-meter-long jaws, toothy thalattosuchia crocodyliforms, and fast, fish-like ...