Scientists have discovered an enormous species of duck-billed dinosaur that lived in what is now New Mexico about 75 million ...

The fossil was originally found in New Mexico that year. Then, in 1935, scientists classified it as a Kritosaurus, which, ...

When most people think of massive snakes, the first one that comes to mind is the anaconda. Anacondas might be the largest ...

Ceratopsians were horned, beaked dinosaurs that once stomped their way all over North America and Asia during the Late ...

Today, lepidosaurs are a diverse group of reptiles. With more than 6,000 species of lizard, snake, amphisbaenian and tuatara, they form an important part of the terrestrial vertebrate fauna. Although ...

In the aftermath of the giant asteroid that crashed into the Yucatan Peninsula about 66 million years ago, approximately 75% ...

This colossal dinosaur stood among the largest animals ever to walk the planet. Its powerful strides likely shook the Earth ...

Tenontosaurus fossils found in West Texas, the southernmost record of the dinosaur and a key to the Early Cretaceous.