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

Discovered in Colorado, a new prehistoric mammal species that lived during the age of the dinosaurs may have been a ...

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

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

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

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 ...

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

Paleontologists have discovered a new mammal that lived with the dinosaurs in Colorado millions of years ago after unearthing ...

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

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

Colorado, a mammal lived in a swampy area similar to modern-day Louisiana — a mammal significantly larger than its furry ...