They believed dinosaurs originated in the southern hemisphere, gradually spreading north. But fossil discovery in Wyoming is rewriting that story. Paleontologists at the University of Wisconsin ...

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. "It was basically the size of a ...

Along with Scott Sampson, chief curator at the Denver Museum of Nature & Science, and Joe Sertich, the museum’s dinosaur paleontologist, the brothers were prospecting for fossils last spring in ...

Jan. 7, 2025 — A newly described dinosaur whose fossils were recently uncovered is challenging the existing narrative, with evidence that the reptiles were present in the northern hemisphere ...

According to a recent report by University of Wisconsin–Madison researchers, these ancient fossils belong to the oldest known dinosaur found in North America, an impressive title previously ...

When and how did dinosaurs first appear and spread across the planet over 200 million years ago? This question has long sparked debate among paleontologists, who must rely on incomplete fossil records ...

The species' name broadly translates to "long ago dinosaur" in the language of the Eastern Shoshone Tribe, whose ancestral lands include the site where the fossils were found. In a new study ...

For decades, paleontologists have been debating how and when the era of dinosaurs began, armed mostly with fragmented fossil records and theories. The widely accepted belief is that dinosaurs first ...