After a century of decreased sightings, reports of a long-necked water monster the size of a hippopotamus are once again ...

In 2020, a father and his daughter were strolling calmly along the beach in Somerset, England, when they discovered an ...

Paleontologists have announced the discovery of a colossal marine reptile that may be the largest ... While their existence coincided with the age of the dinosaurs, they are not dinosaurs.

Modern birds share many traits with dinosaurs, including hollow bones and wishbones. Early birds were also better able to survive the cold conditions after the asteroid strike than many reptiles.

These and many other types of ancient reptiles are often wrongly called dinosaurs. Marine reptiles, such as ichthyosaurs, plesiosaurs and mosasaurs are not dinosaurs. Nor is Dimetrodon or other ...

Find out what was going on in the oceans while dinosaurs dominated the land in the Fossil Marine Reptiles gallery. See some of the most complete fossils of these prehistoric sea animals, including ...

3 min read At the dawn of the Paleogene—the beginning of the Cenozoic era—dinosaurs, pterosaurs, and giant marine reptiles were conspicuously absent from the face of the Earth. Rodent-size ...

Gigantic sauropods led parades of dinosaurs through the forests, over the plains, and along the coasts; long-necked and toothy marine reptiles terrorized fish, ammonites, and mollusks in the seas ...

Dinosaur embryo found curled up and ready to hatch like a bird In the Triassic ocean, marine reptiles such as the plesiosaurs were kings. Plesiosaurus, an early plesiosaur, was about 4.5 metres ...

On a spring day 66 million years ago, paddlefish and sturgeon swam in a river that meandered through a flourishing landscape populated by mighty dinosaurs and small mammals at North Dakota’s ...

Within the synapsids, mammals arose from the mammal-like reptiles. The main evolutionary trend during the Mesozoic was the huge radiation of diapsids. The diapsids are a monophyletic group - including ...

Birds are actually dinosaurs. They evolved from theropods, a group of mostly meat-eaters that included Velociraptor and T.