The oldest equatorial dinosaur in the world, and North America's oldest dinosaur, has been described in a new study. Dating back 230 million years, the chicken-sized dinosaur has big implications for our understanding of how dinosaurs spread across the world,

A newfound "chicken-size" dinosaur, recently unearthed in Wyoming, changes what paleontologists thought they knew about how dinosaurs spread across the globe.

Dinosaurs, the colossal creatures that dominated the Earth millions of years ago, have long fascinated scientists and the public alike. Each new discovery not only ignites imaginations but also deepens our understanding of these prehistoric giants.

In an extraordinary paleontological discovery, scientists have uncovered a remarkably well-preserved dinosaur face fossil that includes intact skin. This find provides an unprecedented look into the appearance and biology of these ancient creatures.

Just a few fossil fragments of a tiny creature discovered thousands of miles north of its contemporaries have shaken our understanding of global dinosaur history.

A newly discovered dinosaur, uncovered by UW-Madison paleontologists, is reshaping the understanding of prehistoric reptiles.