A team of paleontologists have discovered a fossil in northwestern Colorado that reveals a new kind of mammal that lived ...

Paleontologists have discovered fossils of Heleocola piceanus, a swamp-dwelling mammal that lived around 75 million years ago ...

The animal lived about 70 million to 75 million years ago in a part of the state that would likely have been a swampy ...

The new mammal lived in Colorado 70 to 75 million years ago -- a time when a vast inland sea covered large portions of the ...

In 2016, John Foster was walking around the sandstone countryside that defines northwest Colorado when he stopped at ...

Paleontologists from Colorado will be heading to Minneapolis to take part in the annual Society of Vertebrae Professionals at ...

A team of paleontologists working in northwest Colorado have discovered Heleocola piceanus, a mammal that was alive during ...

A new species of fossil mammal about the size of a muskrat, which was found in Colorado, lived during the age of dinosaurs.

In a recent study, paleontologists announced their discovery of an ancient mammal that lived around 70-75 million years ago ...

Rare fossils uncovered in Colorado show an unexpected swamp-dwelling creature lived among the dinosaurs millions of years ago. A team of paleontologists uncovered the “new (or, more accurately ...

Researchers settled on the name "Heleocola," or "swamp dweller," because it likely lived by rivers and swampy locations ...

Colorado has been a hub for paleontologists past and present to discover the preserved bones of some of the most iconic landwalkers in history, the dinosaurs. There have been some major fossils ...