Sharks have been losing teeth for 400 million years. Here’s a guide to uncovering some of these plentiful fossils across the ...

Exquisitely preserved fossils of a shark that thrived during the Cretaceous period appear to solve a long-standing mystery around how it hunted and where it fits into the shark evolutionary tree.

The remnants of a mosasaur show a sea predator that was ill equipped for slashing bites, and likely preferred to swallow its ...

The fossils were discovered in the Western Mississippi Embayment, a basin extending from southern Illinois to northern ...

At the beginning Cretaceous of Period (145 million to 66 million years ago) sharks were once again widely common and varied in the ancient seas, before experiencing their fifth mass extinction event.

Long before the carnage began, the Cretaceous picked up where the Jurassic ... snakelike mosasaurs. Rays and modern sharks became common. Sea urchins and sea stars (starfish) thrived; coral ...

In the past 500 million years on Earth, there have been five mass extinctions. Here are a few incredible species that managed ...

Cretoxyrhina was one of the largest sharks and a formidable predator in the Late Cretaceous seas. Nicknamed the Ginsu shark after the kitchen knife that slices and dices, Cretoxyrhina ripped apart ...

Scientists have calculated the water temperature at which tiger sharks are most active and abundant. They say the sharks, which are second only to great whites in attacking people, prefer a balmy 22C.

Humans are killing sharks at a much faster rate than sharks can repopulate. Sharks mature slowly, have slow reproductive rates, and produce few offspring—all of which makes them extremely vulnerable ...

Ceratopsians are most famous for the triceratops, but the beaked family of herbivorous dinosaurs also included numerous other relatives throughout the Late Jurassic to Late Cretaceous Periods.