The Cretaceous Period witnessed a remarkable diversification of marine reptiles, among which plesiosaurs featured prominently. These secondarily aquatic reptiles adapted to a range of ecological ...

A Rockford exhibit took residents back to the Cretaceous period only for a limited time. “I thought that it was a good idea to come and bring him here,” shared Mariana Castaneda. At the Rockford Park ...

Around 66 million years ago, springtime in the Northern Hemisphere brought disaster and mass death to Earth in the form of a giant asteroid impact that triggered a global extinction. After an asteroid ...

A new study finds that one of the hottest periods in Earth's history may have driven lampreys apart -- genetically speaking. The work could have implications for how aquatic species respond to our ...

Rather than a juvenile of a known species, several fossilized bones represent a new species – and shed light on the question of whether dinosaurs were already in decline before disaster struck.