With serpentine necks, flippers and a mouth full of needle-sharp teeth, plesiosaurs have captured imaginations since ...

Archelon was a giant prehistoric turtle that lived during the Late Cretaceous period, around 80 to 66 million years ago. This sea turtle is the largest known turtle species to have ever existed.

Two underwater sea lilies were eaten and regurgitated around 66 million years ago. They were preserved as fossilized vomit.

There is evidence of wood ash on nearby stalagmites suggesting prehistoric humans carried ... the goddess Nuwa used the legs of a giant sea turtle to prop up the sky after the mountain supporting ...

Following a petition and agreement with the Center for Biological Diversity, the U.S. Fish and Wildlife Service today protected the Suwannee alligator snapping turtle as threatened under the ...

Females likely migrated hundreds of miles to lay eggs on sandy beaches, much like sea turtles do today. Movement onshore, however, was difficult. An adult female Protostega may have weighed a ton ...