A 125-million-year-old fossil reveals a newly discovered dinosaur covered in unusual spikes scientists have never seen before.

The “mesozoic cow” was a dinosaur with hundreds of ever-replacing teeth. Here’s how its uniquely adapted skull allowed it to graze like cattle on low vegetation.

We know the main reason that the age of the dinosaurs came to an end: an asteroid impact on the Yucatán Peninsula some 66 million years ago. But how the dinosaurs’ reign began is far less clear—and ...

A 19th century dinosaur drawing filled with the drama and chaos they exemplified during this early era of dinosaur discovery. Smithsonian Library and Archives This year marks the 200th anniversary of ...

SCOTLAND -- This little guy is a big fan of dinosaurs and you can really tell. His uncanny knowledge of these thunder lizards allows him to name each toy dinosaur by sight as his mother presents them.

A new study sheds light on how these reptiles become “mummies” and paints a picture of what these ancient animals looked like. Paul Sereno and his colleagues spent years painstakingly preparing this ...

Paleontologists in England discovered the existence of a new marine species that roamed the Earth before the dinosaurs and nicknamed the headless arthropod “Sue” after one of their mothers, according ...

You've seen dinosaurs before. But for an Oklahoma State University student, he discovered an entirely new dinosaur species. And he got to name it. "Eoneophron infernalis," Kyle Atkins-Weltman, a PhD ...