These prehistoric sea creatures had long ... to have been caused by a massive asteroid impact. "Mosasaurs are giant sea lizards," Nick Longrich, a paleontologist with the University of Bath ...

The ancient mosasaur, a giant marine lizard, was a formidable predator that thrived during the late Cretaceous period, approximately 100 to 66 million years ago. These colossal reptiles ...

Ichthyosaurs evolved from a group of land reptiles that returned to the sea, just as modern dolphins and whales evolved from mammalian land ancestors – in fact, they look a lot like dolphins. They ...

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 ... for the ...

The bone is the first evidence found in North America of ancient crocodilians feeding on the giant prehistoric flying reptiles, the study added.

Journey into prehistory as the article explores seven monstrous serpents that once ruled land and sea ... reptile evolution and ancient ecosystems. Image source: BBC Imagine the era of giant ...

3 min read At the dawn of the Paleogene—the beginning of the Cenozoic era—dinosaurs, pterosaurs, and giant marine reptiles were conspicuously ... million years ago. Sea surface temperatures ...